ISSN 1301-3637

9.th PROCEEDINGS of the

INTERNATIONAL METALLURGYand MATERIALS CONGRESS

) ULUSLARARASI METALURji veMALZEME KONGRESl

BlLDlRlLER KiTABI

VOLUME D / ClLTII

JB/TIB Hannover

11-15 JUNE 1997 / 11-15 HAZlRAN 1997

iSTANBUL EXHIBITION PALACE / ISTANBUL SERGl SARA YIISTANBUL, TURKIYE

SUPPORTED by/DESTEKLEYEN KURULUSLARTUBlTAK, SARKUYSAN, lgDA§, FAF METAL, FMC-NUROL,EKlNCtLER DI§ TtC.A.§., gOLAKOfiLU METALURji S.T.A.§.

Union of Chambers ofTurkish Engineers and ArchitectsCHAMBER OF METALLURGICAL ENGINEERS

Tilrk Miihendis ve Mimar Odalart BirligiMETALURJIMUHENDlSLERl ODASI

Publication No. / Yaynn No. 33

Content of - VOLUME II / CiLTII - Igindekiler

COMMERCIAL PAPERS/ TlCARlBiLDiRlLER

New concepts in production of specialty steels in bars and coils 829

Czel celiklerin cubuk ve kangal seklinde uretimine yonelik yeni kavramlar

L MASSIMO (Danieli)

Twin electrode DC powered EAF among the latest improvements in DANIELIElectric arc furnace technology 845Ikiz elektrotlu DA EAF: DANIELI Elektrik ark firm teknolojisindeki en songelismelerden biri.K. BERGMAN (Danieli)

QUALITY ASSURANCE IKAUTE QOVENCE

Gunumijzde kalite ve dnemi 865Current quality concepts and their importanceC. ENSARl

Ddkumhanelerde "Proses FMEA" uygulamasi uzerine bir calisma 869A research on the application of FMEA process in foundriesS.SADiOGLU, H. AVCI

Accreditation of testing laboratories: preconditions, procedures,experiences, systems, mutual recognition 875

Test laboratuvarlannm akreditasyonu

J. THIELE

Kalite arac ve tekniklerinin uretim sureci ile butunlestirilmesi ve iirunkalitesine katkismin degerlendirilmesi 879

Integration of quality tools and techniques with production processes andevaluation of this contribution to the product quality6. KELES, L KOSEOGLU, U. DEMlRLER,

Surecler icin basitlestirilmis YOSi ve KIK uygulamasi 885

Simplifed FMEA and QFD applications for processes

A.ESIN

IX

NONDESTRUCTIVE TESTING / TAHRlBA TSIZ MUA YENE

Endiistrlde tahribatsiz muayene uygulamalan 891

Industrial applications of NDT techniques

A.TOPUZ

Tahribatsiz muayene personelinin vasiflandinlmasi vesertifikalandinlmasi 897Qualification and certification of NDT personnelN. MAHMUTYAZICIOGLU, C.H. GUR

Radyografik tekniklerle korozyonlu borularda cidar kahnhgi olciimu 903Wall thickness measurement of corroded pipes by radiographic methods§. EKiNCl, N. BA§, A. YILDIRIM

Hasarsiz muayene uygulamalarinin iirun kalitesine katkismin dikisll boruuretimi drneginde degerlendirilmesi „ 909Evaluation of the contribution of NDT applications to the product quality ofwelded pipe productionU. DEMlRLER, Y. TAPTIK, 0. AKIN, G. PONSCHAB, E. AKGCILLO,

E. HELVACI

Nondestructive testing of Nitrocarburizing - in situ - ex situ 915Nitrokarburizasyonun -yerinde - disinda, hasarsiz muayenesiH.KLCIMPER - WESTKAMP, F. HOFFMANN, P. MAYR.

WELDING TECHNOLOGY / KA YNAK TEKNOLOJlSi

Endustriyel gelisim surecinde kaynagin dnemi veyeri 921Importance & status of welding during industrial developmentK. TOLBENTQl

Aluminyum malzemelerde kaynaklama islemine bagli sicak catlama egillmi 937Hot-cracking susceptibility of Al-materials depending on the welding processC.BATIGUN

Laser beam weldability of the material combination nodular cast iron(GGG40, GGG50, GGG60) - case hardening steel (16 MnCr 5) 943Kuresel grafitli dokme demirin (GGG40.GGG50, GGG60) sementasyon ?eligine(16MnCr5) laserle kaynaWanabilirligiA, KARAASLAN, R. EBNER, E. BRANDSTATTER

Demir tozuhdan imal edilen parcalann genel yapi celigine serf lehimleme Mebirlestirilmesi 951Brazing of parts produced from iron powder to low-C steelsB. GULENC, A. KURT, M. TURKER

Universal plasma torch for metal cutting 957Metal kesmede kullamlan universal plazma torcuM. MIHOVSKY, T. TZONEV, B. LUCHEVA

MIG-MAG kaynaginda argon gazina oksijen ve CO2 ilavesinin kaynakmetali mekanik ozelliklerine etkisinin arastinlmasi ...:.... 963Investigation of effect of CO2 and 02 addition to Argon gas on mechanicalproperties of weld metal in MIG-MAG weldingH. ATE§, M. TURKER

Real time observation of argon shielded GMAW arc by means of an opticalsystem <. 971Argon koruyucu altinda olusan GMAW arkinm optik bir sistem araciligi ileanmda gozlenmesiA. ANKARA, O. OZTURK

peliklerde bilgisayar destekli karbon esdegerliliginin ve on isitmasicakligimn belirlenmesi 977Computer determination of carbon equivalence and preheating temperature ofsteel weldsO. GUVEN

Kalite guvencesi cercevesinde kaynak muhendisi ve kaynakci egitimi 983Training of welding engineer and welders in scope of quality assuranceZ.FILIZ

NONFERROUS / DEMlR Dl$l

Analysis and assessment of metallurgical processes by thermodynamicmodeling 993Metalurjik sureclerin lermodinamik modelleme ile analizi ve degerlendirilmesiI. BARIN

! Modelling of conductivity and viscosity of copper - nickel smelting slagsi using neural nets 1001I Noral aglar kullanilarak bakir-nikel izabe curuflannin iletkenliginin vei viskositesinin modellenmesis R. H. ERIC, A. HEJJA, M. REUTER

XI

Soy metal alasimlarimn elektrolitik aynmi 1009

Electrolytic separation of valuable metal alloysS. GURMEN, S. TlMUR, i. DUMAN

Elektrik ark firini baca tozlanmn pirometalurjik degerlendirilmesi 1015Pyrometallurgical recycling of EAF flue dustsC. F. ARISOY, M.K. §E§EN

Technology and devices for processing the waste acid batteries 1021Atik asit pillerinin islenmesinde kullamlan teknolojiler ve araclarG. A. HARALAMPIEV, N.K.LYAKOV, G.P. GIRDJEV

Demirdisi metallerin (Cu, Al, Pb, Zn) uretimi, tiiketimi ve ticareti 1025The production, consumption and trade of nonferrous metals (Cu, Al, Pb, Zn)R. KONT

Metal iyonlarimn kursun bazh anotlar uzerindeki oksijen fazla voltajina etkisi 1099Effect of metal ions on the oxygen overpotential of the lead-base anodesS. TiMUR, S. GURMEN, I. DUMAN

Bakir curuflanndan uretilen metalik mattaki degerin selektif olarakkazamlmasi uzerine bir calisma 1105A process proposal for the selective recovery of metallic value from copper slagO. ADDEMiR, E. AQMA, H. SESlGUR, C. OKTAYBA§, G. ORHAN

Technological aspects of wastes from coal industry utilization innon-ferrous metallurgy .....' 1111Demirdisi metalurjisinde komur endustri atiklannm kullanilmasinin teknolojikboyutlanV.P. STEFANOVA, B.St. STEFANOV

Nonferrous alloys based on copper with superior physical and mechanicalproperties obtained by microalloying 1117Mikroalasimlama ile elde edilen ustun fiziksel ve mekanik dzelliklere sahip bakiresash demirdisi alasimlarM. VLAD, L MITOSERIU

Aspects of phase equilibria and thermodynamics in the Fe-Ti-O system at15008C and 1600-C ,1123Fe-Ti-0 sisteminin 1500°C ve 1600°C sicakhgindaki faz denge vetermodinamigiJ. PESL, R. H. ERIQ

XII

Mugla kromitierinden alkali fuzyon yontemiyie kromat Qretimi 1135Production of sodium chromate from Mugla chromite concentrates by alkali -fusion methodK. YILDIZ, I.A. SENGiL

Mollbden sulfurun kavrulmasi sirasinda olusan ara oksitlenmereaksiyonunun kinetigi 1 1141Oxidation kinetics of the intermediate product produced during roasting of MoS2 -1C. KAHRUMAN, i. YUSUFOGLU, E. OKTAY

Molibden sulfurun kavrulmasi sirasinda olusan ara oksitlenmereaksiyonunun kinetigi 2 1147Oxidation kinetics of the intermediate product produced during roasting of MoS2 - 2C. KAHRUMAN, I. YUSUFOGLU, E. OKTAY

Pfrometalurjik sureclerde kopuk ve emuisiyoniarin olusumu ve karariiiigi 1153Formation and stability of foams and emulsions in pyrometallurgical processesE. OKTAY, C. KAHRUMAN, i. YUSUFOGLU

Slags and Electroslag remelting processes for chemical reactive elementsprotection in Ni base superalloys 1159Ni esasli superalasimlarda kimyasal reaktif elementlerin korunmasi icin curuf veelektrocuruf ergitme surecleriD. DAISA, M.C. BUNESCU, F. DAISA, V. GEANTA

Kursun anotlarm elektrokimyasal ve mekanik ozelliklerine alasimelementlerinin etkisi 1165Effect of alloying elements on the electrochemical and mechanical properties oflead-anodesS. TlMUR, S. GURMEN, C. ARSLAN, I. DUMAN

Manganez cozeltilerinden demirin uzaklastinlmasi ve prosesdegiskenlerinin etiidii ; 1171Removal of iron from manganese solution and investigation of process variablesM. QINARLI, C. ARSLAN, H. SESlGUR

Aluminotermik yontemle metalik krom uretimi 117aMetallic chromium production by aluminothermic methodG. ORHAN, C. ARSLAN

Petrol Endiistrisinde kullamlan hidrojenasyon katalizor atiklanndanmolibdenin alkali fuzyon yontemi ile geri kazamlmasi ». 1185Recovery of molibdenum from hydrogenation catalysts used in petroleumrefineries by alkali fusion methodC. OKTAYBAS, E. ACMA, O ADDEMlR

Tungsten konstrelerinden aluminotermik proses ile ferrotungsten Qretimi 1191

Production of tungsten from tungsten concentrates by aluminothermic process

0. YUCEL, M.A. OZQELEBl, O. ADDEMiR

Determination of the aerodynamic parameters of the recirculation zones inthe reaction shaft of the flash smelting furnace for sulphide raw materials 1199Sulfur hammaddeler icin kullanilan flas izabe firinlannin reaksiyon saftmdakiresirkulasyon zonlannin aerodinamik parametrelerinin belirlenmesiB.S. STEFANOV, D.K. TSOCHNOVA, V.P. STEFANOVA

Dynamic characteristics of heat transfer in fluidized bed 1205Akiskan yataklarda ISI iletiminin dinamik karakteristikleriR.D. STANEV, N.S. AKHMAKOV, E.G. MICHAILOV, V.I. PETKOV

SiyanurlQ cozeltilerden gumusun aktif karbona adsorbsiyonu sartlanmnincelenmesi 1211

I nvestigation of silver adsorption from silver cyanide solutions ont^ the activatedcarbon

N. YOSMA, H. SESiGUR, E. ACMA

Paslanmaz celik katot Qzerinde toplanan elektrolltik bakira yuzeyaktiflestiricilerin etkisi 1217

Effects of surface reactants on the electrolytic copper deposited on stainlesssteel cathodesS. GURMEN, S. TiMUR, B. QALIS. KAN, I. DUMAN

Milas G6bekdagi boksitlerinin sulfat asidindeki cdzunurlugununincelenmesi 1223

Investigation of solubility of Milas - Gdbekdagi bauxites in sulfuric acid

M. GULFEN, A. ALP, A.O.AYDIN

Cayeli 9inko sulfur konsantresinin oksitleyici basinclici 1231

Oxidative pressure leaching of Qayeli zinc-sulphide concentrate

N. GURESiN, Y. TOPKAYA, A. GEVECi

Determination of instability constant of lead complexes withdiethylenetriamine and ethylenediamlne by the method of dissolving 1237N.K.LYAKOV, G.A. HARALAMPIEV, M.J.TSANEVA, G.P. GIRDJEV

Specific heat and the phase diagram of UNI2Si2 1243

H. SALAMATI, J. AMIGHIAN

XIV

Manganase extraction & concentration with Dl - (p - Napthol) -monosulphide 1249

0. MITOSERIU, M. VLAD, L.C. MITOSERIU

Alkali katkih Mugla boksitlerinden AI2O3 estraksiyon kosullarimnarastinlmasi 1255Investigation of the extraction of AI2O3 from Mugla bauxitesA. ALP, A.O. AYDIN

MgO igerigi yuksek kromit cevherinin kok tozu ile indirgenmesinin kinetigi 1261Kinetic aspects of the reduction of chromite ore with high MgO ratios by coke finesM.K. SESEN, G. KARSLI

(U, Pu) 02 ± x'de oksijenin difuzyonunun incelenmesi 1267Investigation of oxygen diffusion in (U, Pu) 02 ± xA. S. BAYOGLU

MATERIALS CHARACTERIZATION /MALZEME KARAKTERiZASYONU

Yuksek hiz takim9eliklerinde malzeme karakterizasyonu 1275Materials characterization of high-speed steels

S. KARAGOZ

Cu-Zn-AI sekil beilekli alasimlann Ciretim ve karakterizasyonu 1293Production and characterization of Cu - Zn - Al shape memory alloysG. SARANLI, Y.Z. KARABAY, S. BOR

Fe78B13Si9 metalik cammda domen yapilari 1299

Domain structures in the Fe78B13Si9 metallic glass| Y. BlROL, E. ATAR

Basin9li filtrasyon yontemiyie uretilmis Cu-C kompozitlerin tribolojikdavranismin karakterizasyonu 1305Characterization of tribologic behaviour of Cu - C composites produced bypressure infiltrationG. GOLLER, D.P.KOTTY, M. SINGH, S. TEWARI, A. TEKiN

High porosity permeable cellular material based on silicon carbide 1311Silisyum karbur esasli 90k gozenekli ge9irgen hiicresel malzemeV. N. ANTSIFEROV, N. M. AVDEEVA, A. M. MAKAROV

XV

Celik i9i metalik olmayan kalintilann teknolojik ozelliklere etkisininmikroyapisal karakterizasyon ile belirlenmesi 1317

Determination of the effect of non-metallic inclusions in steels on thetechnological properties

M. QOL, M. YILMAZ, S. KARAGOZ

AI-Cu-xLi alasimlannda mikroyapi ve faz ozellikleri 1323Microstructure and phase properties in Al - Cu - xLi alloys

A. ALTMISOGLU, H. gAKIR, A. CEYLAN, g . KESTiR

Effect of manganese content on the formation of intermetallic layer atFe-AI interface 1329Fe-AI arayuzeylerinde intermetalik katman olusumuna manganez igerigininetkisi

F. AGDAS, M.V. AKDENlZ, A.O. MEKHRABOV

Mekanik alasimlanmis ve sicak isostatik sartlarda preslenmis nanokristalTi-47.5AI-3Cr alasimimn 725-1100°C sicakhk arahginda ge9irimli elektronmikroskop karakterizasyonu ve tane buyume kinetigi 1335TEM characterization and grain coarsening kinetics of fully densenanocrystalline Ti - 47,5 Al - 3 Cr intermetallic alloy produced by mechanicalalloying and hot isostatic pressing in the temperature regime of 725 -1100°CM.L. OVEgOGLU, O.N. SENKOV, N. SRISUKHUMBOWORNCHAI, F.H. FROES

Microstructural and microcompositional studies on Ag-clad 2223superconducting ribbons 1341

Gumus giydirilmis 2223 superiletken seritlerde mikroyapisal ve mikrokimyasalcalismalar

M.C. BUNESCU, G. ALDICA, P. NITA

Ultrasonik ve mekanik kanstirmayla fdkturulen toryum okzalattan eldeedilen ThO2 tozlanmn dzelliklerinin incelenmesi 1347Investigation of the properties of ThO2 powder obtained from the thoriumoxalate precipitated by ultrasonic and mechanical mixingA. YAYLI, E. OKTAY, I. YUSUFOGLU, A. VAN

Yuksek silisll elektrik seliklerinin Qretiminde hizli katilastirma uygulamasi 1353

Application of rapid solidification process on the production of electrical steelswith high Si - content

Y. BlROL, N. PARKAN, O. gAKIR

XVI

Bakir esasli sekil beilekli alasimlarda mikroyapi incelemeleri 1359Microstructural investigations on the Cu - based shape memory alloysE. TARHAN, S. BOR

Monte Carlo study of temperature effect on Fe3AI based intermetallics 1365Fe,AI esasli intermetallikler uzerinde sicakhgm etkisinin Monte Carlo yontemiile incelenmesiM.M. ARER, A.O. MEKHRABOV, M.V. AKDENlZ

Recent advances in magnesium alloys 1371Magnezyum alasimlanndaki son gelismelerA. BUZAIANU, M. PETRESCU, M.C. BUNESCU, E. VASILE

Characteristics and application of basalt product as substitutes forasbestos ones 1377Asbest yerine basalt urunlerin kullamlma karakteristikleri ve uygulamalanB. BOYANOV, M. TONCHEV

Korozyona dayamkh Fe-Mn-AI-C 9eliginde dokum mikroyapilanninkarakterizasyonu 1383Characterization of cast microstructures in the corrosion resistant Fe - Mn - Al -C steelA.S. AKKURT, 6.A. ATASOY, K. TULBENTgl

Mekanik alasimlanmis ve sicak isostatik sartlarda preslenmis nanokristalTi-47.5AI-3Cr alasimimn T=1200°C sicakligindaki isil islemi ve havadasogutulmasi sonucu olusan mikroyapisal degisimi 1391Microstructural changes in the fully dense nanocrystalline Ti - 47,5 Al - 3 Crintermetallic alloy produced by mechanical alloying and hot isostatic pressing asa result of heat treatment at 1200 C and cooling in airM.L 6VEgOGLU, O.N. SENKOV, N. SRISUKHUMBOWORNCHAI,FROES

HEAT TREATMENT /ISIL ISLEM

Turkiye'de isil islem sektoru ve diinyadaki gelismeler 1397Heat treatment sector in Turkey and progresses in the world6. YUCEL

YQzeyi lazerle ergitilmis AIS11018 9eli§ine uygulanan isil islemlerindstenitin aynsmasma etkisi 1409Effects of post heat treatment on the decomposition of austenite in the lasersurface melted AIS11018 steelO.V.AKGI " IN A.S. AKKURT

XVII

Yan-kati halde sekil verilmis Etial-24 dovme aluminyum alaf imininyorulma ve yaslanma davramslan 1415Mechanical and aging properties of the semi-solid forged ETIAL-24 wroughtAl-alloy

S. KIRTAY, A. TURKELi

Levha dokiim teknigi ile uretilen AlFeSi alasimlannda homojenlestirmetavi denemeleri 1421Homogenization studies on the Al - Fe - Si alloys produced by twin - roll castingY. BiROL, H.K. ZEYTiN, O. gAKIR, O. ARISOY, S. AKKURT, S. SINMAZ,M. MANKIR

Celige su verme if leminin bilgisayarda modellenmesi 1427

Computer modeling for quenching of steels

C.H.GUR, A.E. TEKKAYA, T.OZTURK, W. SCHULER

Yan-kati proseslerle uretilmis non-dendritik dovme aluminyumalasimlannda 9dzeltiye alma isil isleminin numerik modellenmesi 1433Numerical modeling for the isothermal solution heat treatment followingsemi-solid processing of wrought Al-alloysA. TURKELi

Yan-kati proseslerle uretilmis non-dendritik dovme aluminyumalasimlannda 96zeltiye alma isil islemi \g\n gelistirilmis analitik modeller 1439New analytical models for the isothermal solution heat treatment followingsemi-solid processing of wrought Al-alloysA. TURKELi

Structural and dimensional instabilities in rolling-bearing steels 1445Rulman 9eliklerindeki yapisal ve boyutsal kararsizliklarI.I. STEFANESCU, C.I. GHEORGHIES

Harmonic heating conditions 1451Harmonik isitma sartlanAI.ZLATARSKI, Kr. TSANKOV, D. BOUHOV

Influence of Molybdenum in austenitic stainless steels depending on heattreatment conditions 1457Ostenitik paslanmaz celiklerde isil islem kosullanna bagh olarak molibdeninetkisi

A. GHEORGHIU - DOBRE , S. CIUCA

CASTING / DOKUM

Diinyada ve Turkiye'de dokum sektoriinun baslangici, bugunu ve gelecegi 1465

Begining, current status and future of the foundry sector in Turkey & in the world

(TUDOKSADE)

The economic and technical aspects for achieving total sand conservation 1497Toplam kum tuketimini azaltmanin teknik ve ekonomik boyutlan

D.W. BAKER, S.J. WILLAMS

Kuresel grafitli dokme demirde termal analiz uygulamalan 1505Application of thermal analysis on the ductile cast iron

Y. GUNAY, C. DEMlR

Hizli katilastinlmis AI-12Si ve AI-7.5Fe-1.5Mo-1Si alasimlarimn isilkarariiiigi 1513Thermal stability of rapidly solidified Al -12 Si and Al - 7,5 Fe -1,5 Mo -1 Si alloysY. BlROL

Computer simulation of metal feeding system in the direct production ofthin strip of alloys by twin-roll casting 1519Ince levha alasimlannin tevha dokum teknigi ile dogrudan uretiminde kullanilanmetal besleyici sisteminin bilgisayar simulasyonuM. V. AKDENiZ, G. YILDIZBAYRAK, F. SUZEN

The influence of convection on non-equilibrium solidification of silvergermanium alloys 1525

Gumus germanyum alasimlannin dengesiz katilasmasina konveksiyonun etkisi

D. VOJTECH, S. HOLECEK, C. BARTA, C. BARTA JR., G.OTTO,

G. GORLER, K. WITTMAN, R. ROSTEL

Process design for increased reliability in aluminum castings 1531Aluminyum dokumler igin guvenirlilik arttinci sure? tasarimiM.TlRYAKiOGLU, J.CAMPBELL

The effect of casting temperature on the microstructure and properties ofhigh pressure die casting AZ91D magnesium alloy 1537

AZ91D magnezyum basm9li dokum alasiminda dokum sicakliginm mikroyapive dzellikler uzerindeki etkisi

H. ROSENSON, Z. KOREN, M. BAMBERGER, E.AGHION

XIX

Aktiflestirilmis bentonitin kolloidal ve reolojik dzellikleri Qzerine Li, Caiyonlannin etkisi 1543Effect of Lit-, Ca++ ions on the rheological and colloidal properties of theactivated bentoniteN. GUNGOR, A. ALEMDAR

Bilgi tabanli sistemler kullamlarak malzeme se9imi ve aluminyum dokum ialasimlanna uygulanmasi 1549Material selection using data base systems and its application on cast Al - alloysI. KOCABigAK, A. OZEL, G. KOCABigAK

Silicon particle refinement in hypereutectic Al-Si casting alloys withphosphorus additionsI. Evaluation of a new approach using Al-Fe-P additions to the melt 1555Fosfor katkih hiperotektik Al-Si dokum alasimlannda silisyum tane inceltilmesiI. Eriyige Al-Fe-P katkisi seklindeki yeni yaklasimin degerlendirilmesiR. KAYIKgt, F.H. HAYES, E. AVCI

Silicon particle refinement in hypereutectic Al-Si casting alloys withphosphorus additionsII. Comparison of phosphorus refinement methods 1561Fosfor katkih hiperotektik Al-Si dokum alasimlannda silisyum tane inceltilmesiII. Fosforla inceltme yontemleri ile karsilastinlmasiR. KAYIKgi, F.H. HAYES, E. AVCI

The investigation of a new types of master alloy (Al-Cu, Al-Mn, Al-Ni,Al-Ti-Fe) rapidly quenched from the melt (102-103 K/s) 1567Hizli katilastirma (102-103 K/s) ile uretilen yeni tur master alasimlarin Al-Cu,Al-Mn, Al-Ni, Al-Ti-Fe) incelenmesiG. V. GHICA, P. MOLDOVAN, N. PANAIT, G. POPESCU, M. GHICA

Rafinasyon uygulamalanmn SIVI aluminyum kalitesine etkisi 1573Effect of refinement methods on the melt quality of AluminiumY. BlROL, O. gAKIR, H.K. ZEYTiN, N. KESKlN, E. OZDEN

Dokum sQrecine ydnelik filtre sistemleri ve SiC-AI2O3 sunger filtreuretimine iliskin olurluluk cahsmalan 1579Filtering systems in casting processes and feasibility studies for the productionof SiC-AI2O3 foam filtersN.S. CANARSLAN

OHTEA ve HAA tekniklerinin basmcli dokQm drneginde uygulamah olarakkarsilastinlmasi 1585Comparison of FMEA and FT A techniques applied on the die castingB. PULATKAN, U. DEMlRLER, Y. TAPTIK, L. K0SEOGLU, 6. KELES

XX