RICHARD PAUL GANGLOFF Born: Pittsburgh, Pennsylvania August, 1948 Education: B.S. in Metallurgy and Materials Science Lehigh University, 1970

M.S. in Metallurgy and Materials Science Lehigh University, 1972

Ph.D. in Metallurgy and Materials Science Lehigh University, 1974 Professional Experience:

Department of Metallurgy and Materials Science, Lehigh University, Bethlehem, PA

Graduate Instructor, 1970-1972 Graduate Research Assistant, 1972-1974

Corporate Research and Development Center, General Electric Co., Schenectady, NY

Metallurgist, 1974-1980

Corporate Research Science Laboratories, Exxon Research and Engineering, Annandale, NJ

Staff Metallurgist, 1980-1982 Senior Staff Metallurgist, 1982-1986

School of Engineering and Applied Science, University of Virginia, Charlottesville, VA

Associate Professor of Materials Science, 1986-1990 Professor of Materials Science and Engineering, 1990-present Ferman W. Perry Professor of Engineering, 2005-present

Chair, Department of Materials Science and Engineering, 2003-2008 Director, NASA-UVa Light Aerospace Alloy and Structures Technology

Program, 1987-2000

Visiting Distinguished Professor, Center for Aircraft Structural Life Extension, Department of Engineering Mechanics, United States Air Force Academy, 2009; 2011 Visiting Research Affiliate, National Institute of Standards and Technology, Boulder Laboratories, 2009

Honors and Awards:

BS Degree with Highest Honors Member, Tau Beta Pi and Sigma Xi Undergraduate Research Paper Award (National), TMS-AIME; 1969 Henry Marion Howe Medal, ASM International; 1986 Award of Merit, ASTM, 1991 Fellow of the Society, ASTM, 1991 Fellow of the Society, ASM International; 1996 ASTM E08 Fatigue Lecturer; 1996 Albert Sauveur Award, Philadelphia Chapter of ASM International; 2013

Professional Development:

Management Development Program, Harvard School of Higher Education, 2004

Professional Societies and Committees:

ASM International Chairman, Metals Handbook Committee on Environmental Effects in

Fatigue; 1984 Organizer, International Conference on Environmental Cracking; 1988 Member, International Materials Review Committee; 1985-1992 Member, Awards Policy Committee; 1997-2001 Member, Technical Books Committee; 1998-2001

The Minerals, Metals & Materials Society of AIME Chairman, Hudson-Mohawk Chapter; 1978-1980 Member, Environmental Effects Committee; 1983-1989

Organizer, International Conference on Crack Chemistry, 1983 Member, Board of Review for Metallurgical Transactions, 1983-1993

ASTM Committee E08 on Fatigue & Fracture Chairman, Task Group on Elevated Temperature Cracking; 1982-83 Chairman, Task Group on Small Cracks; 1983-85

Chairman, Subcommittee on Subcritical Crack Growth; 1985-91 Member, Executive Committee on Fracture Mechanics; 1985-92 Organizer, 3 International Conferences on Fracture; 1984, 1987, 1995

National Association of Corrosion Engineers Board of Editors, Corrosion Journal; 1993-1996

University Chair, Virginia Polytechnic Institute and State University MSE Department Program Evaluation Committee; 2007. Member, Virginia Polytechnic Institute and State University MSE Department Advisory Committee; 2004-2008. Chairman, Gordon Research Conference on Physical Metallurgy; 1994

Board of Editors, Fatigue and Fracture of Engineering Materials and

Structures; 1996-2011

Board of Editors, Engineering Fracture Mechanics; 1996-2012

Primary Research Achievements

The overarching achievement of the research cited in the ensuing lists of publications and dissertations/theses consistently centers on precision measurements of the kinetics of environment-assisted crack growth in complex high performance metallic alloys, supplemented by electron-beam characterization of the underling damage mechanism characteristics. These observations are explained by interdisciplinary integration of crack tip micromechanics, H trapping, and occluded crack electrochemistry. The intent is to: (a) develop quantitative data bases and fundamental models of cracking properties through crack tip damage modeling, and (b) incorporate this understanding to manage environmental cracking through alloy development, chemical inhibition, and cracking-life prediction. Specific achievements are as follows.

Lehigh University Produced the definitive characterization of the interactive effects of temperature and H

2 pressure on the kinetics of subcritical hydrogen

cracking in ultra-high strength steel, and assessed rate limiting processes.

General Electric Corporate R&D Center

Lead laboratory characterizations of stress corrosion cracking and solid metal embrittlement in Zr-barrier fuel cladding at the forefront of

commercial nuclear reactor performance. Developed a quantitative small-fatigue crack test method and fracture mechanics analysis to enable powder metallurgy Ni superalloy development for jet engine disk application.

Exxon Corporate Research Science Laboratories

With others, lead international focus on the small crack problem in fatigue; Proposed (electro)chemical similitude as a key factor in environmental cracking life prediction; Provided the first-definitive demonstration of the role of small crack geometry in affecting hydrogen-environment assisted subcritical crack growth.

Established the inhibiting effect of unsaturated hydrocarbon molecules on gaseous hydrogen embrittlement of steel, relevant to next generation processing of polyethylene in high pressure H

2.

University of Virginia

Established understanding of the temperature dependence of aluminum alloy fracture toughness, based on validated crack tip micromechanical modeling, and the fundamental roles of intravoid strain localization and microstructure-scale constraint. Quantified the kinetics of environmental fatigue crack growth in aerospace aluminum alloys, including effects of loading frequency, temperature, gaseous environment composition/partial pressure, and ionic inhibition for chloride solutions; Modeled each effect based on crack tip hydrogen embrittlement governed by processes such as molecular diffusion for water vapor, crack tip process zone H diffusion for chloride solution, and passive film competition with H uptake for ion-inhibited chloride solution. Provided the most detailed quantification available for the crystallographic orientation of micron-scale facets on Al alloy fatigue crack surfaces through combined EBSD and SEM-stereology; Demonstrated crack tip dislocation cell structure, formed by dynamic recovery and acting as a preferred path for H trapping and fatigue-damage accumulation through combined FIB, TEM and EBSD measurements at the sub-micron scale. Quantified fatigue crack formation and microstructure-scale growth associated with constituent particles and corrosion topography in aerospace alloys; Resulting multi-dimensional growth rate data provide a gold standard for assessing competing models of fatigue propagation. Advanced the capability for multi-scale cracking prediction based on mechanistic understanding of hydrogen embrittlement in ultra-high

strength steels and nickel-based superalloys through integration of H trapping with models of threshold stress intensity and H diffusion limited crack growth rate. Formalized a fracture mechanics based life prediction code, SCCrack, for probabilistic simulation of component stress corrosion cracking and hydrogen embrittlement; Developed an accelerated laboratory test method to provide quantitative cracking data inputs to this code. Identified the dominant roles of slow-rising stress intensity and temperature on precharged hydrogen cracking in moderate strength Cr-Mo steels in petrochemical service; Behavior was correlated with crack tip H concentration, which provided a similitude concept for pressure vessel fitness-for-service and minimum pressurization temperature modeling. Produced detailed review papers centered on environmental fatigue and hydrogen cracking, edited 6 books in these fields, founded a major international conference on Environment Induced Cracking of Metals, and lead a Gordon Research Conference on Time-Dependent Material Degradation.

Several PhD students are now leading researchers in the fields of environmental fatigue and fracture.

Publications Archival peer-reviewed papers 103 Conference proceedings 26 Books edited 6 Google Scholar h-index 26 17 since 2009 Total citations 1878 819 since 2009 Published Reports

General Electric 12 Exxon 14 University of Virginia 45

Technical Presentations

Invited 132 Contributed 86 Advised PhD Dissertations 18 MS Theses 11 Consultancies 28 Important Publications

J.T. Burns, J.M. Larsen and R.P. Gangloff, “Effect of Initiation Feature on Microstructure-scale Fatigue Crack Propagation in Al-Zn-Mg-Cu”, International Journal of Fatigue, Vol. 42, pp. 104-121 (2012). (Recognized as 1 of top 25 papers published in this journal in 2012.) Yunjo Ro, S.R. Agnew and R.P. Gangloff, “Effect of Environment on Fatigue Crack Wake Dislocation Structure in Al-Cu-Mg”, Metallurgical and Materials Transactions, A, Vol. 43A, pp. 2275-2292 (2012).

J.S. Warner and R.P. Gangloff, “Molybdate Inhibition of Corrosion Fatigue Crack Propagation in Precipitation Hardened Al-Cu-Li”, Corrosion Science, Vol. 62, pp. 11-21 (2012).

Uday Komaragiri, S.R. Agnew, R.P. Gangloff and M.R. Begley, “The Role of Macroscopic Hardening and Individual Length Scales on Crack Tip Stress Elevation from Phenomenological Strain Gradient Plasticity”, Journal of Mechanics and Physics of Solids, vol. 56, pp. 3527-3540 (2008).

Yongwon Lee and R.P. Gangloff, “Measurement and Modeling of Hydrogen Environment Assisted Cracking of Ultra-High Strength Steel”, Metallurgical and Materials Transactions, A, vol. 38, pp. 2174-2190 (2007). D. Li, R.P. Gangloff, and J.R. Scully, “Hydrogen Trap States in Ultrahigh-Strength AerMet® 100 Steel”, Metallurgical and Materials Transactions, A, Vol. 35A, pp. 849-864 (2004).

B.P. Somerday, L.M. Young and R.P. Gangloff, “Crack Tip Mechanics Effects on Environment-Assisted Cracking of Beta-Titanium Alloys in Aqueous NaCl”, Fatigue and Fracture of Engineering Materials and Structures, Vol. 23, pp. 39-58 (2000).

M.J. Haynes and R.P. Gangloff, "Temperature-Dependent Void-Sheet Fracture in Al-Cu-Mg-Ag", Metallurgical and Materials Transactions, A, Vol. 29A, pp. 1599-1613 (1998).

D.C. Slavik and R.P. Gangloff, "Environment and Microstructure Effects on Fatigue Crack Facet Orientation in an Al-Li-Cu-Zr Alloy", Acta Metallurgica et Materialia, Vol. 44, pp. 3515-3534 (1996). R.S. Piascik and R.P. Gangloff, "Environmental Fatigue of an Al-Li-Cu Alloy: Part I - Intrinsic Crack Propagation Kinetics in Hydrogenous Environments", Metallurgical Transactions, A, Vol. 22A, pp. 2415-2428 (1991). R.P. Gangloff, "Crack Size Effects on the Chemical Driving Force for Aqueous Corrosion Fatigue", Metallurgical Transactions, A, Vol. 16A, pp. 953-969 (1985). Henry Marion Howe Medal Paper R.P. Gangloff and R.P. Wei, "Gaseous Hydrogen Embrittlement of High Strength Steels", Metallurgical Transactions, A, Vol. 8A, pp. 1043-1053 (1977).

Important Review Papers

R.P. Gangloff, “Hydrogen Assisted Cracking of High Strength Alloys”, in Comprehensive Structural Integrity, I. Milne, R.O. Ritchie and B. Karihaloo, Editors-in-Chief, J. Petit and P. Scott, Volume Editors, Vol. 6, Elsevier Science, New York, NY, pp. 31-101 (2003). R.P. Gangloff, D.C. Slavik, R.S. Piascik and R.H. Van Stone, "Direct Current Electrical Potential Measurement of the Growth of Small Fatigue Cracks", in Small Crack Test Methods, ASTM STP 1149, J.M. Larsen and J.E. Allison, eds., ASTM, Philadelphia, PA, pp. 116-168 (1992). R.P. Gangloff, "Corrosion Fatigue Crack Propagation in Metals", in Environment Induced Cracking of Metals, R.P. Gangloff and M.B. Ives, eds., NACE, Houston, TX, pp. 55-109 (1990).

Important Book Gaseous Hydrogen Embrittlement of Materials in Energy Technologies: The Problem, Its Characterization, and Effects on Particular Alloy Classes, Volumes 1 and 2, eds., R.P. Gangloff and B.P. Somerday, Woodhead Publishing Limited, Cambridge, UK, 1340 pages (2012).

Important Presentations

“Hydrogen Embrittlement Matters”, Liberty Bell Chapter, ASM International (2014) Albert Sauveur Award Lecture “Environmental Effects on Intrinsic Fatigue Crack Propagation in AL Alloys”, R.O. Ritchie Honorary Symposium, TMS Annual Meeting, Orlando, FL (2012). Keynote “Science-Based Prognosis to Manage Structural Alloy Performance in Hydrogen”, Hydrogen Effects on Materials, Jackson Lake, WY (2008). Plenary “Modeling Environment Sensitive Fatigue Crack Propagation at Low Growth Rates”, 4th International Conference on Very High Cycle Fatigue, TMS, Ann Arbor, MI (2007). Keynote “Modeling Hydrogen Assisted Crack Propagation in Complex Alloys”, 10th International Conference on Mechanical Behavior of Materials, Busan, Korea (2007). Keynote “Water Vapor Effects on Fatigue Crack Growth Kinetics for Al-Cu-Mg/Li”, A.J. McEvily Honorary Symposium, TMS Annual Meeting, San Antonio, TX (2006). Invited “Critical Issue in Hydrogen Assisted Cracking of Structural Alloys”, 2nd International Conference on Environment Induced Cracking in Metals, Banff, Canada (2004). Keynote “Crack Tip Processes in Environmental Cracking”, Gordon Research Conference, New London, NH (2000). Invited “Environmental Fatigue”, ASTM E08 Fatigue Lecture, Orlando, FL (1996). Award “Micromechanical and Chemical Processes at the Environmental Crack Tip”, Gordon Research Conference, Plymouth, NH (1992). Invited

Most Important Consultancies

Lawrence Livermore National Laboratory (1984) Member of the 1st external scientific review team charged to assess federal research and engineering aimed at guaranteeing ultra-long term storage of nuclear waste.

Chevron Research and Technology Company (1995-97) Critically assessed the state-of-the art in guaranteeing the fitness-for-service of welded steel piping and pressure vessels in wet H

2S service in

petrochemical refinery operations. Focus was on the causes of a major failure of an MEA-adsorber vessel in the Union Oil Company Refinery in Lemont, IL. The results of this work are captured in a major-final report. Rogers, Joseph, O’Donnell & Quinn (1999-2001) Conducted a detailed analysis of the causes of prestressing-steel wire fractures which compromised the structural integrity of the Hayden-Rhodes Aqueduct. The technical case strongly impacted the outcome of litigation. International Consortium of 14 Petrochemical and Steel Companies (2000-2006) Led a Joint Industry Project to characterize the interactive effects of temper embrittlement and hydrogen embrittlement on the structural integrity of legacy Cr-Mo steel thick-wall pressure vessels during start-up and shutdown. Work included development of a quantitative fracture mechanics measurement procedure, its application in two Japanese and one French laboratory, data analysis, and a final report. S&K Technologies and the U.S. Air Force (2002-2005) Participated as a member of the team charged with developing quantitative methods to predict the impact of base corrosion on fatigue during aircraft flight. My focus was on development of an experimental method to measure the effect of precorrosion topography on fatigue life for Al-Zn-Mg-Cu alloys used in wing structures. American Petroleum Institute (2008-present) Leading two projects aimed at guaranteeing the safe operation of legacy Cr-Mo and modern Cr-Mo-V steel thick-wall pressure vessels during near-ambient temperature start-up and shutdown. The first project developed a quantitative model to predict minimum pressurization temperature based on a new crack tip H concentration similitude parameter. The second project is extending this work to V-modified Cr-Mo steel; including experimental planning and analysis of data provided by commercial laboratories.

Publications:

S. Pillot, K.A. Nibur and R.P. Gangloff, “Hydrogen Cracking of Cr-Mo-V Steel from High Pressure H

2 Service”, Proceedings, 2nd International

Conference on Metals and Hydrogen”, OCAS, Ghent, Belgium, in press (2014).

R.P. Gangloff, H. Ha, J.T. Burns and J.R. Scully, “Measurement and Modeling of Hydrogen Environment Assisted Cracking in Monel K-500”, Metallurgical and Materials Transactions, A, in press (2014). Abdullah Al-Rumaih and R.P. Gangloff, “Measurement and Modeling of Temperature Dependent Internal Hydrogen Assisted Cracking in Cr-Mo Steel”, in Hydrogen-Materials Interactions, B.P. Somerday and P. Sofronis eds., ASME, New York, NY, pp. 33-48 (2014).

C.B. Crane and R.P. Gangloff, “Dissolution and Hydrogen Diffusion Control of IGSCC in Sensitized Al-Mg. Alloys”, in Hydrogen-Materials Interactions, B.P. Somerday and P. Sofronis eds., ASME, New York, NY, pp. 439-449 (2014).

R.P. Gangloff, “Fracture Mechanics Prediction of Component SCC Using Accelerated Laboratory Testing”, Department of Defense 2013 Corrosion Conference, NACE International, Houston, TX, in press (2013). C.B. Crane and R.P. Gangloff, “The Effect of Applied Polarization on Stress Corrosion Cracking in Sensitized 5083”, Department of Defense 2013 Corrosion Conference, NACE International, Houston, TX, in press (2013). J.T. Burns, V.K. Gupta, S.R. Agnew and R.P. Gangloff, “Effect of Low Temperature on Fatigue Crack Formation and Microstructure-Scale Propagation in Legacy and Modern Al-Zn-Mg-Cu Alloys”, International Journal of Fatigue, vol. 55, pp. 268-275 (2013). Jiahe Ai, Hung Ha, R.P. Gangloff and J.R. Scully, “Hydrogen Diffusion, Trapping and Thermal Desorption Energies for Precipitation Hardened Ni-Cu-Al Alloy: UNS N05500 (Monel Alloy K-500)”, Acta Metallurgica et Materialia, vol. 61, pp. 3186-3199 (2013). J.T. Burns and R.P. Gangloff, “Effect of Low Temperature on Fatigue Crack Formation and Microstructure-scale Growth from Corrosion Damage in Al-Zn-Mg-Cu”, Metallurgical and Materials Transactions A, Vol. 44, pp. 2083-2105 (2013). Yunjo Ro, S.R. Agnew and R.P. Gangloff, “Effect of Environment on Fatigue Crack Wake Dislocation Structure in Al-Cu-Mg”, Metallurgical and Materials Transactions, A, Vol. 43A, pp. 2275-2292 (2012). G.L. Pioszak, Yongwon Lee, W.M. Garrison, and R.P. Gangloff, “Effect of Liquid Nitrogen Chill on SCC of AerMet® 100 Ultra-High Strength Steel”, Department of Defense 2011 Corrosion Conference, CorrDefense, NACE, Houston, TX, www.corrdefense.org (2012).

C.B. Crane and R.P. Gangloff, “Stress Corrosion Cracking of Low Temperature Sensitized AA5083”, Department of Defense 2011 Corrosion Conference, CorrDefense, NACE, Houston, TX, www.corrdefense.org (2012). J.S. Warner and R.P. Gangloff, “Molybdate Inhibition of Fatigue Crack Propagation in Precipitation Hardened Al-Cu-Li Under Full Immersion Exposure”, Department of Defense 2011 Corrosion Conference, CorrDefense, NACE, Houston, TX, www.corrdefense.org (2012). J.T. Burns, R.W. Bush and R.P. Gangloff, “Effect of Environment on Corrosion Induced Fatigue Crack Formation and Early Propagation in Aluminum Alloy 7075-T651”, Department of Defense 2011 Corrosion Conference, CorrDefense, NACE, Houston, TX, www.corrdefense.org (2012). J.S. Warner and R.P. Gangloff, “Molybdate Inhibition of Corrosion Fatigue Crack Propagation in Precipitation Hardened Al-Cu-Li”, Corrosion Science, Vol. 62, pp. 11-21 (2012). J.S. Warner and R.P. Gangloff, “Alloy Induced Inhibition of Fatigue Crack Growth in Age-hardenable Al-Cu Alloys”, International Journal of Fatigue, Vol. 42, pp. 35-44 (2012). V.K. Gupta, R.P. Gangloff and S.R. Agnew, “Diffraction Characterization of Microstructure Scale Fatigue Crack Growth in a Modern Al-Zn-Mg-Cu Alloy”, International Journal of Fatigue, Vol. 42, pp. 131-146 (2012).

J.T. Burns, J.M. Larsen and R.P. Gangloff, “Effect of Initiation Feature on Microstructure-scale Fatigue Crack Propagation in Al-Zn-Mg-Cu”, International Journal of Fatigue, Vol. 42, pp. 104-121 (2012). (Recognized as 1 of top 25 papers published in this journal in 2012.) J.T. Burns, J.M. Larsen and R.P. Gangloff, “Driving Forces for Localized Corrosion-to-Fatigue Crack Transition in Al-Zn-Mg-Cu”, Fatigue and Fracture of Engineering Materials and Structures, Vol. 34, pp. 745-773 (2011). J.T. Burns and R.P. Gangloff, “Scientific Advances Enabling Next Generation Management of Corrosion Induced Fatigue”, Procedia Engineering, Vol. 10, pp. 362-369 (2011). J.T. Burns, Sangshik Kim and R.P. Gangloff, “Effect of Corrosion Severity on Fatigue Evolution in Al-Zn-Mg-Cu”, Corrosion Science, Vol. 52 pp. 498-508 (2010).

J.S. Warner, G.H. Bray and R.P. Gangloff, “Environment-Enhanced Fatigue Crack Propagation and Inhibition in Aluminum Alloys under Full Immersion and Atmospheric Exposure”, Department of Defense 2009 Corrosion Conference, CorrDefense, NACE, Houston, TX, www.corrdefense.org (2009). R.P. Gangloff, “Science-Based Prognosis to Manage Structural Alloy Performance in Hydrogen”, in Hydrogen Effects on Materials, B.P. Somerday, P. Sofronis, and R.H. Jones, eds., ASM International, Materials Park, OH, pp. 1-21 (2009). J.S. Warner, Sangshik Kim and R.P. Gangloff, “Molybdate Inhibition of Environmental Fatigue Crack Propagation in Al-Zn-Mg-Cu”, International Journal of Fatigue, Vol. 31, pp. 1952-1965 (2009). Thorsten Michler, Yongwon Lee, R.P. Gangloff, and Joerg Naumann, “Influence of Macro Segregation on Hydrogen Environment Embrittlement of SUS 316L Stainless Steel”, International Journal of Hydrogen Energy, Vol. 34, pp. 3201-3209 (2009). Sangshik Kim, J.T. Burns, and R.P. Gangloff, “Fatigue Crack Formation and Growth from Localized Corrosion in Al-Zn-Mg-Cu”, Journal of Engineering Fracture Mechanics, Vol. 76, pp. 651-667 (2009).

Uday Komaragiri, S.R. Agnew, R.P. Gangloff and M.R. Begley, “The Role of Macroscopic Hardening and Individual Length Scales on Crack Tip Stress Elevation from Phenomenological Strain Gradient Plasticity”, Journal of Mechanics and Physics of Solids, vol. 56, pp. 3527-3540 (2008). Yunjo Ro, S.R. Agnew and R.P. Gangloff, “Environmental Fatigue Crack Surface Crystallography for Al-Zn-Cu-Mg-Mn/Zr”, Metallurgical and Materials Transactions, A, vol. 39A, pp. 1449-1465 (2008). Yunjo Ro, S.R. Agnew and R.P. Gangloff, “Fatigue Crack Surface Crystallography of Precipitation Hardened Al-Cu-Mg/Li”, Metallurgical and Materials Transactions, A, vol. 38, pp. 3042-3062 (2007). R.P. Gangloff, “Critical Issues in Hydrogen Assisted Cracking of Structural Alloys”, in Environment Induced Cracking of Materials (EICM-2), Sergei Shipilov, R.H. Jones, J.-M Olive, and R.B. Rebak, eds., Elsevier Science, Oxford, UK, pp. 141-166 (2007). Yongwon Lee and R.P. Gangloff, “Measurement and Modeling of Hydrogen Environment Assisted Cracking of Ultra-High Strength Steel”, Metallurgical and Materials Transactions, A, vol. 38, pp. 2174-2190 (2007).

Yunjo Ro, S.R. Agnew, G.H. Bray and R.P. Gangloff, “Environment Exposure Dependent Fatigue Crack Growth Kinetics for Al-Cu-Mg/Li”, Materials Science and Engineering, vol. 468-470, pp. 88-97 (2007).

R.P. Gangloff, “Prognosis of Ferrous Alloy Performance in H

2 Service”, in

Proceedings International Hydrogen Energy Development Forum, Yukitaka Murakami, ed., Research Center for Hydrogen Industrial Use and Storage, Fukuoka, Japan, pp. 69-82 (2007).

Y.J. Ro, S.R. Agnew, and R.P. Gangloff, “Environmental Exposure Dependence of Low Growth Rate Fatigue Crack Damage in Al-Cu-Li/Mg Alloys”, in 4th International Conference on Very High Cycle Fatigue, J.E. Allison, J.W. Jones, J.M. Larsen and R.O. Ritchie, eds., TMS-AIME, Warrendale, PA, pp. 409-420 (2007).

J.S. Warner, Sangshik Kim, and R.P. Gangloff, “Ionic Inhibition of Environmental Fatigue Crack Growth in 7075-T6”, Materials Science Forum, Vol. 345-346, pp. 989-994 (2007).

S.S. Kim, J. Burns, and R.P. Gangloff, “Fracture Mechanics Modeling of Fatigue Life for Precorroded 7075-T6511 Aluminum Alloy”, in Fatigue 06, W. S. Johnson, ed., Elsevier Ltd., London, UK (CD), Paper FT-405, 11 pages (2006).

Y.J. Ro, S.R. Agnew and R.P. Gangloff, “Fatigue Crack Surface Crystallography of Precipitation Hardened Aluminum Alloys”, in Fatigue 06, W. S. Johnson, ed., Elsevier Ltd., London, UK (CD), Paper FT-404, 10 pages (2006). Y.J. Ro, M.R. Begley, R.P. Gangloff and S.R. Agnew, “Effect of Aging on Scale-Dependent Plasticity in Aluminum Alloy 2024 and Implications for Crack Tip Damage”, Materials Science and Engineering, A, Vol. 435-436, pp. 333-334 (2006). J.R. Scully, B.A. Kehler, Y. Lee and R.P. Gangloff, “Strategies for Mitigation of Hydrogen Environment Assisted Cracking of High Strength Steels”, Tri-Service Corrosion Conference, NACE, Houston, TX, Paper No. 06T019 (2005). M.R. Begley, S.R. Agnew, U. Komaragiri, and R.P. Gangloff, “Hydrogen Damage in the Crack Tip Environment”, in Proceedings, 11th International Conference on Fracture, Paper 5505, A. Carpinteri et al., eds., Politecnico de Torino, Turin, Italy, 6 pages (2005).

A.M. Al-Rumaih and R.P. Gangloff, “New Fracture Mechanics Approach to Characterize Internal Hydrogen Embrittlement of Steel for Fitness-for-Service Modeling”, in Proceedings, 11th International Conference on Fracture, Paper 5044, A. Carpinteri et al., eds., Politecnico de Torino, Turin, Italy, 6 pages (2005). S.R. Agnew, Y.J. Ro, M.R. Begley, and R.P. Gangloff, “Fatigue Crack Tip Damage-Based Models in Structural Prognosis”, in Proceedings, 11th International Conference on Fracture, Paper 5097, A. Carpinteri et al., eds., Politecnico de Torino, Turin, Italy, 6 pages (2005). M.P. Ciccone, R.P. Gangloff, and R.G. Kelly, “Test Environment Selection for Corrosion Fatigue Testing of AA7075-T6”, Corrosion, Vol. 61, pp. 571-578 (2005). D. Li, J. Burns, R. Bush, M. Garratt, A. Hinkle, T. Mills, C. Marks, J. Moran, J. Scully and R.P. Gangloff, “Characterization of Corrosion-Fatigue Interaction for Aluminum Alloy Substitution”, in Proceedings of the 8th Joint NASA/FAA/DoD Conference on Aging Aircraft, R. D. Young, Editor, web site publication: www. JCAA.US/AA_Conference2005 (2005). R.P. Gangloff, "Corrosion Fatigue Cracking", in Corrosion Tests and Standards: Application and Interpretation, 2nd Edition, R. Baboian, ed., ASTM International, West Conshohocken, PA, pp. 302-321 (2005). Y.J. Ro, S.R. Agnew and R.P. Gangloff, “Uncertainty in the Determination of Fatigue Crack Facet Crystallography”, Scripta Materialia, Vol. 52, pp. 531-536 (2005). J.R. Scully, H. Dogan, D. Li, and R.P. Gangloff, “Controlling Hydrogen Embrittlement in Ultra-high Strength Steels”, in Paper No. 04563, CORROSION/2004, NACE, Houston, TX (2004).

D. Li, R.P. Gangloff, and J.R. Scully, “Hydrogen Trap States in Ultrahigh-Strength AerMet® 100 Steel”, Metallurgical and Materials Transactions, A, Vol. 35A, pp. 849-864 (2004). R.P. Gangloff, “Hydrogen Assisted Cracking of High Strength Alloys”, in Comprehensive Structural Integrity, I. Milne, R.O. Ritchie and B. Karihaloo, Editors-in-Chief, J. Petit and P. Scott, Volume Editors, Vol. 6, Elsevier Science, New York, NY, pp. 31-101 (2003).

R.P. Gangloff, “Diffusion Control of Hydrogen Environment Embrittlement in High Strength Alloys”, in Hydrogen Effects on Material Behavior and Corrosion Deformation Interactions, N.R. Moody, A.W. Thompson, R.E. Ricker, G.S. Was and R.H. Jones, eds., The Minerals, Metals & Materials Society, Warrendale, PA, pp. 477-497 (2003). R.L.S. Thomas, J.R. Scully and R.P. Gangloff, “Internal Hydrogen Embrittlement of Ultrahigh-Strength AerMet®100 Steel”, Metallurgical and Materials Transactions, A, Vol. 34A, pp. 327-344 (2003). R.L.S. Thomas, D. Li, R.P. Gangloff and J.R. Scully, “Trap-Governed Hydrogen Diffusivity and Uptake Capacity in Ultrahigh-Strength AerMet®100 Steel”, Metallurgical and Materials Transactions, A, Vol. 33A, pp. 1991-2004 (2002). R.P. Gangloff, “Environment Sensitive Fatigue Crack Tip Processes and Propagation in Aerospace Aluminum Alloys”, in Fatigue ’02, Anders Blom, Editor, Engineering Materials Advisory Services, West Midlands, UK, pp. 3401-3433 (2002). G.H. Bray, M. Glazov, R.J. Rioja, D. Li, and R.P. Gangloff, “Effect of Artificial Aging on the Fatigue Crack Propagation Resistance of 2000 Series Aluminum Alloys”, International Journal of Fatigue, Vol. 23, pp. S265-S276 (2002). L.M. Young and R.P. Gangloff, “S-Phase Effect On Environmental Cracking in AA7050”, in Advances in the Metallurgy of Aluminum Alloys, M. Tiryakioglu, ed., ASM International, Materials Park, OH, pp. 135-140 (2001). R.P. Gangloff, “Embrittlement of High Strength -Ti Alloys”, in Advances in Fracture Research, Proceedings of ICF10, K. Ravi-Chandar, B.L. Karihaloo, T. Kishi, R.O. Ritchie, A.T. Yokobori, Jr. and T. Yokobori, eds., Paper No. ICF108920R, CD version, Elsevier Science, Oxford, UK, (2001). D. Li, R.P. Gangloff, G.H. Bray, M.V. Glazov and R.J. Rioja, “Aging Dependent Intrinsic Fatigue Crack Propagation In AA2024”, in Advances in the Metallurgy of Aluminum Alloys, M. Tiryakioglu, ed., ASM International, Materials Park, OH, pp.105-118 (2001). Z. Gasem and R.P. Gangloff, “Rate-Limiting Processes in Environmental Fatigue Crack Propagation in 7000-Series Aluminum Alloys”, in Chemistry and Electrochemistry of Corrosion and Stress Corrosion Cracking: A Symposium Honoring the Contributions of R.W. Staehle, R.H. Jones, ed., TMS-AIME, Warrendale, PA, pp. 501-521 (2001).

R.L.S. Thomas, R.P. Gangloff and J.R. Scully, “Effect of Diffusible Hydrogen Concentration on Internal Hydrogen Embrittlement of AerMet 100”, CD file S08p1c.pdf, in Proceedings of the Tri-Service Conference on Corrosion, J.V. Kelley and B. Placzankis, eds., Army Research Laboratory, Aberdeen, MD (2000). E. Richey, III and R.P. Gangloff, “Strain Rate Dependent Environment Assisted Cracking of /-Ti Alloys in Chloride Solution”, in Environmentally Assisted Cracking: Predictive Methods for Risk Assessment and Evaluation of Materials, Equipment, and Structures, ASTM STP 1401, R.D. Kane, Ed., American Society for Testing and Materials, West Conshohocken, PA, pp.104-127 (2000). K.R. Cooper, L.M. Young, R.P. Gangloff, and R.G. Kelly, “The Electrode Potential Dependence of Environment-Assisted Cracking of AA7050”, Materials Science Forum, Vols. 331-337, pp. 1625-1634 (2000). Z.M. Gasem and R.P. Gangloff, “Effect of Temper on Environment-Assisted Fatigue Crack Propagation in 7000-Series Aluminum Alloys”, Materials Science Forum, Vols. 331-337, pp. 1479-1488 (2000). B.P. Somerday, L.M. Young and R.P. Gangloff, “Crack Tip Mechanics Effects on Environment-Assisted Cracking of Beta-Titanium Alloys in Aqueous NaCl”, Fatigue and Fracture of Engineering Materials and Structures, Vol. 23, pp. 39-58 (2000). B.P. Somerday and R.P. Gangloff, “Effect of Strength on Environment-Assisted Cracking of Ti-8V-6Cr-4Mo-4Zr-3Al in Aqueous Chloride: Age Hardening vs Work Hardening”, Materials Science and Engineering A, Vol. A254, pp. 166-178 (1998). B.P. Somerday and R.P. Gangloff, “Effect of Strength on Environment-Assisted Cracking of Ti-8V-6Cr-4Mo-4Zr-3Al in Aqueous Chloride: Crack Tip Strain Rate”, Materials Science and Engineering A, Vol. A254, pp. 179-188 (1998). R.P. Gangloff, “Fracture Mechanics Characterization of Hydrogen Embrittlement in Cr-Mo Steel”, in Present Situation on Steels for Hydrogen Pressure Vessels, Creusot-Loire Industrie, Le Creusot, France (1998).

M.J. Haynes and R.P. Gangloff, "Temperature-Dependent Void-Sheet Fracture in Al-Cu-Mg-Ag", Metallurgical and Materials Transactions, A, Vol. 29A, pp. 1599-1613 (1998).

B.P. Somerday, N.R. Moody, J.E. Costa and R.P. Gangloff, “Environment-Induced Cracking in Structural Titanium Alloys”, Paper No. 27, Corrosion ‘98, NACE, Houston, TX, (1998). B.P. Somerday and R.P. Gangloff, “Environmental Cracking Limitations to the Application of High Strength Beta-Titanium Alloys in the Marine Environment”, in Proc. of the Tri-Service Conference on Corrosion, Vol. I, D.A. Shifler, ed., LaQue Corrosion Services, Wrightsville Beach, NC, pp. 1-1 to 1-21 (1997).

M.J. Haynes and R.P. Gangloff, "Elevated Temperature Fracture Toughness of Al-Cu-Mg-Ag Sheet: Characterization and Modeling", Metallurgical and Materials Transactions, A, Vol. 28A, pp. 1815-1829 (1997).

L.M. Young, G.A. Young, J.R. Scully and R.P. Gangloff, “The Effects of Electrode Potential and Temper on Environment Assisted Cracking in AA7050", in Light Weight Alloys for Aerospace Applications IV, E. Lee, W.E. Frazier, N.J. Kim and K. Jata, eds., TMS-AIME, Warrendale, PA, pp. 3-18 (1997). J.A. Lillard, R.G. Kelly and R.P. Gangloff, “Effect of Electrode Potential on Stress Corrosion Cracking and Crack Chemistry of a Nickel-Base Superalloy”, Corrosion ‘97, Paper No. 197, NACE, Houston, TX (1997). M.J. Haynes and R.P. Gangloff, "High Resolution R-Curve Characterization of the Fracture Toughness of Thin Sheet Aluminum Alloys", Journal of Testing and Evaluation, Vol. 25, pp. 82-98 (1997).

M.J. Haynes, B.P. Somerday, C.L. Lach and R.P. Gangloff, "Micromechanical Modeling of Temperature-Dependent Initiation Fracture Toughness in Advanced Aluminum Alloys", in Elevated Temperature Effects on Fatigue and Fracture, ASTM STP 1297, R.S. Piascik, R.P. Gangloff and A. Saxena, eds., ASTM, Philadelphia, PA, pp. 165-190 (1997). R.P. Gangloff, B.P. Somerday and D.L. Cooke, "Understanding Crack Tip Strain Rate Effects in Hydrogen Embrittlement for Improved Fitness-for-Service Modeling", in Life Prediction of Structures Subject to Environmental Degradation, P.L. Andresen and R.N. Parkins, eds., NACE, Houston, TX, pp. 161-175 (1996).

D.C. Slavik and R.P. Gangloff, "Environment and Microstructure Effects on Fatigue Crack Facet Orientation in an Al-Li-Cu-Zr Alloy", Acta Metallurgica et Materialia, Vol. 44, pp. 3515-3534 (1996).

R.S. Piascik and R.P. Gangloff, "Modeling Environment-Enhanced Fatigue Crack Growth in Al-Li-Cu-Zr", in Hydrogen Effects on Material Behavior, A.W. Thompson and N.R. Moody, eds., TMS-AIME, Warrendale, PA, pp. 409-433 (1996). S.S. Kim, M.J. Haynes and R.P. Gangloff, "Localized Deformation Control of Elevated Temperature Fracture in Submicron Grain Aluminum with Dispersoids", Materials Science and Engineering A, Vol. 203, pp. 256-271 (1995).

B.P. Somerday, Yang Leng and R.P. Gangloff, "Elevated Temperature Fracture Toughness of a Particulate Reinforced Aluminum Alloy Composite--Part II: Micromechanical Modeling", Fatigue and Fracture of Engineering Materials and Structures, Vol. 18, pp. 1031-1050 (1995).

B.P. Somerday, Yang Leng and R.P. Gangloff, "Elevated Temperature Fracture Toughness of a Particulate Reinforced Aluminum Alloy Composite--Part I: Fracture Toughness", Fatigue and Fracture of Engineering Materials and Structures, Vol. 18, pp. 565-582 (1995).

R.P. Gangloff, "Corrosion Fatigue Cracking", in Corrosion Tests and Standards: Application and Interpretation, R. Baboian, ed., ASTM, Philadelphia, PA, pp. 253-271 (1995). L.M. Young, G.A. Young, Jr., J.R. Scully, and R.P. Gangloff, "Aqueous Environment Enhanced Crack Propagation in High Strength Beta Titanium Alloys", Metallurgical and Materials Transactions, A, Vol. 26A, pp. 1257-1271 (1995). J.A. Grandle, B.P. Somerday and R.P. Gangloff, "Yield Strength and Solution Composition Effects on Aqueous Environmental Cracking of Ti-8V-6Cr-4Zr-4Mo-3Al (Beta C)", in Proc. of the Tri-Service Conference on Corrosion, T. Naguy, ed., USAF Wright-Patterson Air Force Base, OH, pp. 375-392 (1994).

M.E. Mason and R.P. Gangloff, "Modeling Time-Dependent Corrosion Fatigue Crack Propagation in 7000 Series Aluminum Alloys", in FAA/NASA International Symposium on Advanced Structural Integrity Methods for Airframe Durability and Damage Tolerance, C.E. Harris, ed., NASA Conference Publication 3274, Part 1, NASA-Langley Research Center, Hampton, VA, pp. 441-462 (1994). B.P. Somerday and R.P. Gangloff, "Global Constraint Insensitive Fracture in a Metal Matrix Composite", Metallurgical and Materials Transactions, A, Vol. 25A, pp. 1471-1479 (1994).

R.P. Gangloff, R.S. Piascik, D.L. Dicus and J.C. Newman, "Fatigue Crack Propagation in Aerospace Aluminum Alloys", Journal of Aircraft, Vol. 31, pp. 720-729 (1994).

R.P. Gangloff and R.G. Kelly, "Microbe Enhanced Environmental Fatigue Crack Propagation in HY130 Steel", Corrosion, Vol. 50, pp. 345-354 (1994). W.C. Porr, Jr. and R.P. Gangloff, "Elevated Temperature Fracture of RS/PM Alloy 8009: Part I -- Fracture Mechanics Behavior", Metallurgical and Materials Transactions, A, Vol. 25A, pp. 365-379 (1994).

L.M. Young and R.P. Gangloff, "Hydrogen Environment Embrittlement of Beta Titanium Alloys", in Titanium '92, Science and Technology, Vol. 3, F.H. Froes and I.L. Caplan, eds., TMS-AIME, Warrendale, PA, pp. 2209-2216 (1993). R.S. Piascik and R.P. Gangloff, "Environmental Fatigue of an Al-Li-Cu Alloy: Part II - Microscopic Hydrogen Cracking Processes", Metallurgical Transactions, A, Vol. 24A, pp. 2751-2762 (1993).

D.C. Slavik, J.A. Wert and R.P. Gangloff, "Determining Fracture Facet Crystallography Using Electron Back Scatter Patterns and Quantitative Tilt Fractography", Journal of Materials Research, Vol. 8, pp. 2482-2491 (1993). D.C. Slavik, C.P. Blankenship, Jr., E.A. Starke, Jr. and R.P. Gangloff, "Intrinsic Fatigue Crack Growth Rates for Al-Li-Cu-Mg Alloys in Vacuum", Metallurgical Transactions A, Vol. 24A, pp. 1807-1817 (1993). D.C. Slavik and R.P. Gangloff, "Microscopic Processes of Environmental Fatigue Crack Propagation in Al-Li-Cu Alloy 2090", in Fatigue '93, Vol. II, J.-P. Bailon and J.I. Dickson, eds., EMAS, West Midlands, UK, pp. 757-765 (1993).

R.P. Gangloff, D.C. Slavik, R.S. Piascik and R.H. Van Stone, "Direct Current Electrical Potential Measurement of the Growth of Small Fatigue Cracks", in Small Crack Test Methods, ASTM STP 1149, J.M. Larsen and J.E. Allison, eds., ASTM, Philadelphia, PA, pp. 116-168 (1992).

J.A. Wagner and R.P. Gangloff, "Fracture Toughness of Al-Li-Cu-In Alloys", Scripta Metallurgica et Materialia, Vol. 26, pp. 1779-1784 (1992).

B.P. Somerday, Yang Leng, F.E. Wawner and R.P. Gangloff, "Elevated Temperature Fracture Toughness of a SiC Particulate Reinforced 2009 Aluminum Composite", in Advanced Metal Matrix Composites for Elevated Temperatures, M.N. Gungor, ed., ASM International, Metals Park, OH, pp. 167-182 (1992). W.C. Porr, Jr., Anthony Reynolds, Yang Leng and R.P. Gangloff, "Elevated Temperature Cracking of RSP Aluminum Alloy 8009: Characterization of the Environmental Effect", Scripta Metallurgica et Materialia, Vol. 25, pp. 2627-2632 (1991).

R.S. Piascik and R.P. Gangloff, "Environmental Fatigue of an Al-Li-Cu Alloy: Part I - Intrinsic Crack Propagation Kinetics in Hydrogenous Environments", Metallurgical Transactions, A, Vol. 22A, pp. 2415-2428 (1991). W.C. Porr, Jr., Y. Leng, and R.P. Gangloff, "Elevated Temperature Fracture Toughness of P/M Al-Fe-V-Si", in Low Density, High Temperature Powder Metallurgy Alloys, W.E. Frazier, M.J. Koczak, and P.W. Lee, eds., TMS-AIME, Warrendale, PA, pp. 129-155 (1991). Yang Leng, W.C. Porr, Jr. and R.P. Gangloff, "Time Dependent Crack Growth in P/M Al-Fe-V-Si at Elevated Temperatures", Scripta Metallurgica et Materialia, Vol. 25, pp. 895-900 (1991).

R.P. Gangloff, "Hydrogen Environment Enhanced Fatigue Crack Propagation in Metals", in Advanced Earth-To-Orbit Propulsion Technology, R.J. Richmond and S.T. Wu, eds., NASA CP 3092, Vol. III, Washington, DC, pp. 483-510 (1990). Y. Leng, W.C. Porr, Jr. and R.P. Gangloff, "Tensile Deformation of 2618 and Al-Fe-Si-V Aluminum Alloys at Elevated Temperatures", Scripta Metallurgica et Materialia, Vol. 24, pp. 2163-2168 (1990). R. Krishnamurthy, C.N. Marzinsky and R.P. Gangloff, "Microstructure and Yield Strength Effects on Hydrogen Environment Enhanced Fatigue of Steels", in Hydrogen Effects on Material Behavior, N.R. Moody and A.W. Thompson, eds., TMS-AIME, Warrendale, PA, pp. 891-908 (1990).

R.P. Gangloff, "Corrosion Fatigue Crack Propagation in Metals", in Environment Induced Cracking of Metals, R.P. Gangloff and M.B. Ives, eds., NACE, Houston, TX, pp. 55-109 (1990). R.S. Piascik and R.P. Gangloff, "Aqueous Environment Effects on Intrinsic Corrosion Fatigue Crack Propagation in an Al-Li-Cu Alloy", in Environment Induced Cracking of Metals, R.P. Gangloff and M.B. Ives, eds., NACE, Houston, TX, pp. 233-239 (1990).

K.T. Venkateswara Rao, R.S. Piascik, R.P. Gangloff and R.O. Ritchie, "Fatigue Crack Propagation in Aluminum-Lithium Alloys",in Proc. Fifth Intl. Al-Li Conf., T.H. Sanders, Jr. and E.A. Starke, Jr., eds., Materials and Component Engineering Publications Ltd., Birmingham, UK, pp. 955-971 (1989).

R.P. Wei and R.P. Gangloff, "Environmentally Assisted Crack Growth in Structural Alloys: Perspectives and New Directions", in Fracture Mechanics: Perspectives and Directions, ASTM STP 1020, R.P. Wei and R.P. Gangloff, eds., ASTM, Philadelphia, PA, pp. 233-264 (1989).

R.S. Piascik and R.P. Gangloff, "Intrinsic Fatigue Crack Propagation in Aluminum-Lithium Alloys: The Effect of Gaseous Environments", in Advances in Fracture Research, K. Salama, K. Ravi-Chandar, D.M.R. Taplin and P. Rama Rao, eds., Pergamon Press, London, UK, pp. 907-918 (1989). R.P. Gangloff, "Crack Tip Models of Hydrogen Environment Embrittlement: Applications to Fracture Mechanics Life Prediction", Materials Science and Engineering, Vol. A103, pp. 157-166 (1988). R.P. Gangloff, "Ethylene Inhibition of Gaseous Hydrogen Embrittlement in High Strength Steel", in Basic Questions in Fatigue, Vol. 2, ASTM STP 924, R.P. Wei and R.P. Gangloff, eds., ASTM, Philadelphia, PA, pp. 230-251 (1988). P.L. Andresen, R.P. Gangloff, L.F. Coffin and F.P. Ford, "Applications of Fatigue Analyses: Energy Systems", in Fatigue 87, Vol. III-A, R.O. Ritchie and E.A. Starke, Jr., eds., EMAS, West Midlands, UK, pp. 1723-1751 (1987). R.P. Gangloff and D.J. Duquette, "Corrosion Fatigue of Metals: A Survey of Recent Advances and Issues", in Chemistry and Physics of Fracture, R.M. Latanision and R.H. Jones, eds., Martinus Nijhoff Publishers BV, Netherlands, pp. 612-645 (1987). R.P. Gangloff, "A Review and Analysis of the Threshold for Hydrogen Environment Embrittlement of Steel", in Corrosion Prevention and Control, 33rd Sagamore Army Materials Research Conference, M. Levy and S. Isserow, eds., US Army Laboratory Command, Watertown, MA, pp. 64-111 (1986).

R.P. Gangloff and R.P. Wei, "Small Crack-Environment Interactions: The Hydrogen Embrittlement Perspective", in Small Fatigue Cracks, R.O. Ritchie and J. Lankford, eds., TMS-AIME, Warrendale, PA., pp. 239-264 (1986).

R.P. Gangloff and A. Turnbull, "Crack Electrochemistry Modeling and Fracture Mechanics Measurement of the Hydrogen Embrittlement Threshold", in Modeling Environmental Effects on Crack Initiation and Propagation, R.H. Jones and W.W. Gerberich, eds., TMS-AIME, Warrendale, PA., pp. 55-81 (1986). R.P. Gangloff, "Inhibition of Aqueous Chloride Corrosion Fatigue by Control of Crack Hydrogen Production", in Critical Issues in Reducing the Corrosion of Steel, H. Leidheiser, Jr. and S. Haruyama, eds., NSF/JSPS, Tokyo, Japan, pp. 28-50 (1985).

R.P. Gangloff, "The Environmental Effect on Fatigue Crack Propagation", in Metals Handbook: Mechanical Testing, 9th edition, Vol. 8, ASM, Metals Park, OH, pp. 403-410 (1985). R.P. Gangloff, "Crack Size Effects on the Chemical Driving Force for Aqueous Corrosion Fatigue", Metallurgical Transactions, A, Vol. 16A, pp. 953-969 (1985). R.P. Gangloff and R.O. Ritchie, "Environmental Effects Novel to the Propagation of Short Fatigue Cracks", in Fundamentals of Deformation and Fracture, B.A. Bilby, K.J. Miller and J.R. Willis, eds., Cambridge University Press, Cambridge, UK, pp. 529-558 (1985).

R.P. Gangloff, "Oxygen Inhibition Model of the Chemical Crack Size Effect in Corrosion Fatigue", in Embrittlement by the Localized Crack Environment, R.P. Gangloff, ed., TMS-AIME, Warrendale, PA, pp 265-290 (1984). R.P. Gangloff, "Solid Cadmium Embrittlement of Textured Zircaloy-2", in Embrittlement by Liquid and Solid Metals, M.H. Kamdar, ed., TMS-AIME, Warrendale, PA, pp. 485-505 (1984).

R.P. Gangloff, "Electrical Potential Monitoring of the Formation and Growth of Small Fatigue Cracks in Embrittling Environments", in Advances in Crack Length Measurement, C.J. Beevers, ed., EMAS, UK, pp. 175-231 (1982). R.P. Gangloff, "The Criticality of Crack Size in Aqueous Corrosion Fatigue", Res Mechanica Letters, Vol. 1, pp. 299-306 (1981).

R.P. Gangloff, "Quantitative Measurements of the Growth Kinetics of Small Fatigue Cracks in 10Ni Steel", Fatigue Crack Growth Measurement and Data Analysis, ASTM STP 738, S.J. Hudak, Jr. and R.J. Bucci, eds., ASTM, Philadelphia, PA, pp. 120-138 (1981).

R.P. Gangloff, "Electrical Potential Monitoring of Crack Formation and Subcritical Growth from Small Defects", Fatigue of Engineering Materials and Structures, Vol. 4, No. 1, pp. 15-33 (1981). R.H. Van Stone and R.P. Gangloff, "The Effect of Processing Parameters on the Microstructure and Mechanical Properties of Rene 95 Consolidated from Gas Atomized Powders", in Rapid Solidification Processing, Principles and Technology II, Claitors Press, Baton Rouge, LA, pp. 317-330 (1980). R.P. Gangloff, D.E. Graham and A.W. Funkenbusch, "The Influence of Environment Purity on Gaseous Iodine Embrittlement of Zircaloy-2 and High Purity Zirconium", Corrosion, Vol. 35, No. 7, pp. 316-325 (1979). D.S. Tomalin, R.B. Adamson and R.P. Gangloff, "The Performance of Irradiated Copper and Zirconium Barrier Modified Zircaloy Cladding Under Simulated PCI Conditions", Zirconium in the Nuclear Industry, ASTM STP 681, ASTM, Philadelphia, PA, pp. 122-144 (1979).

R.P. Gangloff and R.P. Wei, "Fractographic Analysis of Gaseous Hydrogen Induced Cracking in 18Ni Maraging Steels", Fractography in Failure Analysis, ASTM STP 645, ASTM, Philadelphia, PA, pp. 87-106 (1978). R.P. Gangloff and R.P. Wei, "Gaseous Hydrogen Embrittlement of High Strength Steels", Metallurgical Transactions, A, Vol. 8A, pp. 1043-1053 (1977). L.F. Coffin and R.P. Gangloff, "Integrated Laboratory Methods for Evaluating PCI in Zircaloy-2 Fuel Cladding", Proc. Conference Water Reactor Fuel Performance, Amer. Nuc. Soc., Chicago, IL, pp. 346-355 (1977). R.P. Gangloff and R.P. Wei, "Gaseous Hydrogen Assisted Crack Growth in 18Ni Maraging Steels", Scripta Metallurgica, Vol. 8, pp. 661-667 (1974).

R.P. Gangloff and R.W. Hertzberg, "Elevated Temperature Tensile and Creep Rupture Behavior of the Unidirectionally Solidified Ni-Ni

3Nb Eutectic

Composite", Proc. Conf. on In-Situ Composites, Vol. 2, NMAB, Washington, DC, pp. 83-103 (1972).

R.P. Gangloff, R.W. Kraft and J.D. Wood, "Fiberless Region Defects in Unidirectionally Solidified Al-Al

3Ni", Metallurgical Transactions, Vol. 3, pp.

348-350 (1972).

Major Published Reports:

V. Ogarevic, M. Oja, R. Tryon and R.P. Gangloff, “SCCrack User Manual”,

Ver. 2.2, Navmar Applied Sciences Corporation, Warminster, PA (2013). J. Waldman, R.P. Gangloff and W.E. Garrison, “Development of Corrosion-Hydrogen Crack Resistant Aircraft Alloys from Mechanistic Understanding”, Final Report, STTR Topic No. N08-T010 (Phase II), Navmar Applied Sciences Corporation, Warminster, PA (2011). R.P. Gangloff, “Impact of Hydrogen Embrittlement on Minimum Pressurization Temperature for Thick-wall Cr-Mo Steel Reactors in High Pressure Hydrogen Service”, Final Report, API, Washington, DC (2011). “DARPA/NGC Structural Integrity Prognosis System”, Contract number HR0011-04-C-0003, John Papazian, editor, Northrop Grumman Aerospace Systems, Bethpage, NY (2008). R.P. Gangloff, J.T. Burns and Sangshik Kim, “Laboratory Characterization and Fracture Mechanics Modeling of Corrosion-Fatigue Interaction for Aluminum Alloy Substitution”, Final Report, Contract F09650-03-D-0001, Aging Aircraft Systems Squadron, WPAFB, OH (2005). R.P. Gangloff, “Laboratory Studies of Hydrogen Embrittlement in Aging Cr-Mo Steel for Thick-Wall Reactors”, Joint Industry Program on Hydroprocessing Reactors, A.J. Bagdasarian, Chair, Chevron Research and Technology Company, Richmond, CA (2001). R.P. Gangloff and D.L. Cooke, “Failure Analyses and Laboratory Experimentation for Improved Fracture Mechanics Modeling of Fitness-for-Service of Welded C-Mn Steel Pressure Vessels in Wet H

2S”, Chevron

Research and Technology Company Report, Richmond, CA (1997).

R.P. Gangloff, “Laboratory Methods to Characterize Hydrogen-Enhanced Crack Propagation in Cr-Mo Steel from Retired Hydroprocessing Reactors”, Chevron Research and Technology Company Report, Richmond, CA (1997). Edward Richey, III, Allen W. Wilson, and R.P. Gangloff, "University of Virginia Fatigue Analysis Software (UVAFAS)”, University of Virginia, Charlottesville, VA (1995). Edward Richey, III, A.W. Wilson, J.M. Pope, and R.P. Gangloff, "Computer Modeling the Fatigue Crack Growth Rate Behavior of Metals in Corrosive Environments", NASA CR-194982, NASA-Langley Research Center (1994).

R.P. Gangloff and Sang Shik Kim, "Environment Enhanced Fatigue Crack Propagation in Metals: Inputs to Fracture Mechanics Life Prediction", NASA CR-191538, NASA-Langley Research Center, Hampton, VA (1993).

R.P. Gangloff, "Critical Assessment of Hydrogen Embrittlement in Pressure Vessel Steels", Report HPV-59, Materials Properties Council, New York, New York (1991). R.P. Gangloff, "Corrosion Fatigue Crack Propagation in Metals", NASA CR-4301, NASA-Langley Research Center, Hampton, VA (1990). R.P. Gangloff, "The Behavior of Unirradiated Zirconium-Lined and Copper-Plated Zircaloy-2 Tubing Under Simulated PCI Conditions", General Electric Company Report, GEAP-25093 (1979).

Books edited:

Embrittlement by the Localized Crack Environment, ed., R.P. Gangloff, TMS-AIME, Warrendale, PA (1984).

Basic Questions in Fatigue, Vol. II, ASTM STP 924, eds., R.P. Wei and R.P. Gangloff, ASTM, Philadelphia, PA (1988).

Fracture Mechanics: Perspectives and Directions, ASTM STP 1020, eds., R.P. Wei and R.P. Gangloff, ASTM, Philadelphia, PA (1989).

Environment Induced Cracking of Metals, eds., R.P. Gangloff and M.B. Ives, NACE, Houston, TX (1990). Elevated Temperature Effects on Fatigue and Fracture, ASTM STP 1297, eds., R.S. Piascik, R.P. Gangloff and A. Saxena, ASTM, Philadelphia, PA (1997). Gaseous Hydrogen Embrittlement of Materials in Energy Technologies: The Problem, Its Characterization, and Effects on Particular Alloy Classes, Volume 1, eds., R.P. Gangloff and B.P. Somerday, Woodhead Publishing Limited, Cambridge, UK, 840 pages (2012).

Gaseous Hydrogen Embrittlement of Materials in Energy Technologies: Mechanisms, Modelling and Future Developments, Volume 2, eds., R.P. Gangloff and B.P. Somerday, Woodhead Publishing Limited, Cambridge, UK, 500 pages (2012).

PhD Dissertations Advised:

Mechanisms of Intrinsic Damage Localization During Corrosion Fatigue: Al-Li-Cu System, Robert S. Piascik, University of Virginia, Charlottesville, VA (1990).

Microstructure and Yield Strength Effects on Hydrogen Environment Fatigue of Steels, Ravi Krishnamurthy, University of Virginia, Charlottesville, VA (1991).

Elevated Temperature Fracture of Advanced Powder Metallurgy Aluminum Alloy 8009, William C. Porr, Jr., University of Virginia, Charlottesville, VA (1992).

Environmental Fatigue Crack Growth and Microscopic Damage Mechanisms in AA2090, Donald C. Slavik, University of Virginia, Charlottesville, VA (1993).

Elevated Temperature Fracture of Advanced Aluminum Alloys, Michael J. Haynes, University of Virginia, Charlottesville, VA (1997).

Metallurgical and Crack-Tip Mechanics Effects on Environment-Assisted Cracking of Beta-Titanium Alloys in Aqueous Chloride, Brian P. Somerday, University of Virginia, Charlottesville, VA (1998).

Environment Assisted Cracking of a Nickel-Based Superalloy in Hydrogen-Producing Solutions, Jennifer A. Lillard, University of Virginia, Charlottesville, VA (1998). with R.G. Kelly Frequency Dependent Environmental Fatigue Crack Propagation in the 7XXX Alloy/Aqueous Chloride System, Zuhair M. Gasem, University of Virginia, Charlottesville, VA (1999). Microstructural Dependence of Aqueous-Environment Assisted Crack Growth and Hydrogen Uptake in AA7050, Lisa M. Young, University of Virginia, Charlottesville, VA (1999). Microstructure and Strain Rate Effects on the Environment Assisted Cracking of /-Ti Alloys in Aqueous Chloride, Edward Richey, III, University of Virginia, Charlottesville, VA (2000). Internal Hydrogen Embrittlement of High-Strength Beta-Alpha Titanium Alloys, Sean P. Hayes, University of Virginia, Charlottesville, VA (2000) Measurement and Modeling of Temperature Dependent Hydrogen Embrittlement of Cr-Mo Steel to Enable Fitness-for-Service Modeling, Abdullah M. Al-Rumaih, University of Virginia, Charlottesville, VA (2004). Characterization of Exposure Dependent Fatigue Crack Growth Kinetics and Damage Mechanisms for Aluminum Alloys, Yunjo Ro, University of Virginia, Charlottesville, VA (2008).

Effect of Aqueous Phase Inhibitors on Mitigating Potential-Dependent Hydrogen Environment Assisted Cracking of an Ultra-high Strength Steel, Sami M. Al-Ghamdi, University of Virginia, Charlottesville, VA (2010). with J.R. Scully Effect of Initiation Feature and Environment on Fatigue Crack Formation and Early Propagation in Al-Zn-Mg-Cu, James T. Burns, University of Virginia, Charlottesville, VA (2010). Inhibition of Environmental Fatigue Crack Propagation in Age-Hardenable Aluminum Alloys, Jenifer S. Warner, University of Virginia, Charlottesville, VA (2010). Intergranular Stress Corrosion Cracking of Low-Temperature Sensitized Al-Mg Alloys, Cortney B. Crane, University of Virginia, Charlottesville, VA (2014). Metallurgical Control of Stress Corrosion Cracking in Ultra-High Strength Stainless Steel, Greger L. Pioszak, University of Virginia, Charlottesville, VA, in progress (2015).

MS Theses Advised: Elevated Temperature Fracture Toughness of a SiC Particulate-Reinforced 2009 Aluminum Composite, Brian P. Somerday, University of Virginia, Charlottesville, VA (1993). Environment-Assisted Cracking in Beta Titanium Alloys, Lisa M. Young, University of Virginia, Charlottesville, VA (1993). Time-Dependent Corrosion Fatigue Crack Propagation in 7000 Series Aluminum Alloys, Mark E. Mason, University of Virginia, Charlottesville, VA (1994). Empirical Modeling of Environment-Enhanced Fatigue Crack Propagation in Structural Alloys for Component Life Prediction, Edward Richey III, University of Virginia, Charlottesville, VA (1995). Internal Hydrogen Embrittlement of a Trap-Rich Ultrahigh-Strength Steel, AerMet100, Richard L.S. Thomas, University of Virginia, Charlottesville, VA (2000). with J.R. Scully

Post Overload Fatigue Crack Growth Retardation in AA7050 in Aqueous Chloride-Chromate Environments, Chelsey L. Gallik, University of Virginia, Charlottesville, VA (2002). Residual, Diffusible and Total Hydrogen Concentrations and Embrittlement after Baking in Cadmium Plated AerMet100, Hakan Dogan, University of Virginia, Charlottesville, VA (2004). with J.R. Scully Fatigue Crack Surface Crystallography of Precipitation Hardened Aluminum Alloys, Yunjo Ro, University of Virginia, Charlottesville, VA (2004). The Effect of Corrosion Product Formation on Fatigue Crack Closure of AA7075-T6511 and AA7055-T74511, Marco P. Ciccone, University of Virginia, Charlottesville, VA (2005). with R.G. Kelly Modeling Fatigue Behavior of Pre-Corroded Aluminum Alloys Using Linear Elastic Fracture Mechanics, James T. Burns, University of Virginia, Charlottesville, VA (2006). Measurement and Modeling of Hydrogen Assisted Cracking of Ultra-High Strength Steel, Yongwon Lee, University of Virginia, Charlottesville, VA (2007).

Consulting:

Naval Research Laboratory Exxon Research and Engineering Company Crouse-Hinds Infilco Degremont Stephenson and Balthrop, Ltd. Lawrence Livermore National Laboratory Sharples Incorporated NASA-Johnson Space Flight Center United Technologies - Pratt & Whitney Southwest Research Institute Allied Signal, Inc. Carson Associates/U.S. Internal Revenue Service General Electric Corporate Research and Development McGuire, Woods, Battle & Boothe Chevron Research and Technology Company International Consortium of 14 Petrochemical and Steel Companies Christian and Barton ALCOA Technical Center Structural Reliability Technology

Century Aluminum Rogers, Joseph, O’Donnell & Quinn S&KT/U.S. Air Force NASA-Langley Research Center Questek Innovations, LLC General Motors American Petroleum Institute Columbus McKinnon Corporation Navmar Applied Sciences Corporation

Courses Developed:

Fracture Mechanics of Engineering Materials (graduate; televised)

Physical Metallurgy of Transition Element Alloys (graduate; televised)

Deformation and Fracture Mechanics of Structural Materials (advanced undergraduate and graduate; televised)

Engineering Materials: Properties and Applications (undergraduate) Aerospace Materials: Properties and Applications (undergraduate) Origins of Mechanical Behavior of Materials (undergraduate/graduate)

Short Course Participation:

Modern View of Fatigue; Union College, Schenectady, NY; 18 years, 1976 to 1993.

Aircraft Design and Development; NAVAIR, Alexandria, VA; 13 years, 1986 to 1998.

Electrochemical Techniques in Corrosion Engineering; UVa Center for Electrochemical Science and Engineering; 1 year, 1994.

Revised January, 2014