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Research Contents Visualization of 3D Crystallographic Defects using SEM/EBSD technique

Crystallographic grains and defects play an important role in many fundamental processes, such as grain growth and recrystallization, damage, and plastic deformation. Due to the importance of these processes, there is considerable interest in characterizing the crystallographic orientation and grain boundary distribution of crystalline materials. In this study, an experimental investigation of the crystallographic defects, such as dislocation arrays, grain boundaries and its orientations, using electron backscatter diffraction (EBSD) mapping with a scanning electron microscope (SEM) have been performed in a commercial polycrystalline metals.

Available Facilities and Equipment

SEM/EBSD (TSL Solutions)

Atomic Force Microscopy XE-100 (Park Sys.)

Nano-Indentation (Hysitron)

A Microscopic Internal Structure Analysis for Crystallographic Metals Name HIGA, Yoshikazu E-mail [email protected]

Status Professor, Dr. Engng.

Affiliations The Japan Society of Mechanical Engineers The Society of Materials Science, Japan Japanese Society for Engineering Education

Keywords SEM/EBSD, AFM, Nano-Indentation, Visualization

Technical Support Skills

・ Crystallographic Orientation Mapping by SEM/EBSD Technique ・ An Estimation of Material Characteristic using AFM & Nano-Indentation ・ An Observation of Internal Structure and a 3D-Structural Analysis using CT

EBSD Equipment System Configuration Local observation region and corresponding to

crystallographic orientation map

Dislocation Density Map, Grain Boundary Map, Inverse Pole Figure

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Improvement of Mechanical properties of Metals by using Plasma Nitriding Process Name MAKISHI Takashi E-mail [email protected]

Status Professor Dr.Eng.

Affiliations Japan Society of Mechanical Engineering, Japan Society of Engineering Education, Japan Society of Heat Treatment, Surface Finishing society of Japan, Japan Society of Corrosion Engineering

Keywords ・Plasma Nitriding, ・Heat treatment, ・Fatigue, ・Corrosion, ・Teaching Materials


・Observation of microstructure for metals ・Fractography of metals ・Elemental analysis

Research Contents


Optical microscope Hardness tester

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Name Shoichiro Nakamoto E-mail [email protected]

Status Professor

Affiliations Physical Society of Japan

Keywords Irregular signal Detection, Linear Resonant Oscilatory, Magnetic Actuator, History

of Science and Technology

Technical ・ None ・

Research Contents (1) Interested in developing alternative analytical approach and entropy concept for Irregular signal from

Life system, earth system and cosmological data, which is not differentiable and not continuous. (2) Development and improvement of LROMA) Linear Resonant Oscilatory Mannetic Actiator) (3) History and Philosophy of science and Technology

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Name TAKEMURA Fumiaki E-mail [email protected]

Status Associate Professor

Affiliations The Robotics Society of Japan, The Japan Society of Mechanical Engineers, IEEE

Keywords Underwater robot, global position measurement of underwater objects


・ Development of field robots ・ Underwater robot ・ Mechatronics

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Manufacturing Systems Analysis with Discrete Event Simulation Name Toba Hiroyasu E-mail [email protected]

Status Associate Professor

Affiliations IEEE, ACM, IPSJ (Information Processing Society of Japan), and JSME (Japan Society of Mechanical Engineers)

Keywords systems simulation, manufacturing systems, production schedule, SCM


・ performance evaluation of discrete systems with systems simulation ・ analysis of discrete manufacturing systems ・ production scheduling algorithms

Research Contents The objectives of this research include undergraduate education and training in manufacturing systems

engineering. Our research interest focuses on risk management in manufacturing systems through the use of virtual factories. We provide several research themes for undergraduate students who are interested in discrete mechanical systems such as robots or inspection instruments. We guide students to implement virtual factories by using commercially available discrete event systems simulators, and to develop several manufacturing systems based on their ideas or their inspirations and their experimental results. Students of our undergraduate course finally learn to manage the risks by themselves in introducing their

original manufacturing system developed in virtual factory, by thinking rationality from stand points of quality and reliability or maintainability. Figure 1 shows process flows of two contest robot implemented into the virtual factory. Figure 2 depicts

probability distributions of lead time obtained from experimental results under several scenarios of manufacturing systems developed for two contest robots production. The results show the effectiveness of their manufacturing systems developed for.

Figure 1．Process flows of Contest Robot Prototype Figure 2．Two Prototype Lead Time Distributions

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Documents

Department of Mechanical Systems Engineer ing Ok ional ... · PDF fileilities and achine (Nipp tec stren mizawa ... cal System e of Techn ot control rect Quenc ... Avionics) ) porati