by Institution Author "Saray, Onur"
Now showing items 1-9 of 9
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Biaxial deformation behavior and formability of precipitation hardened ultra-fine grained (UFG) Cu-Cr-Zr alloy
Saray, Onur (Elsevier Science Sa, 2016)The combined effects of ultrafine-grained (UFG) microstructure and precipitation on the formability and biaxial deformation behavior of a Cu-Cr-Zr alloy were investigated. The UFG microstructure formation results in good ... -
EFFECT OF FRICTION STIR PROCESSING ON FATIGUE BEHAVIOR OF THIN DUAL PHASE (DP600) STEEL SHEETS
Saray, Onur; Yilmaz, Mumin; Ozturk Yilmaz, Imren (Tanger Ltd, 2018)In this study, effects of Friction Stir Processing (FSP) on the deformation behavior of Dual Phase (DP600) steel sheets under static and cyclic loading were investigated. Fatigue tests were performed at a frequency of 15 ... -
Effect of precipitation on mechanical and wear properties of ultrafine-grained Cu-Cr-Zr alloy
Purcek, G.; Yanar, H.; Saray, Onur; Kraman, I.; Maier, H. J. (Elsevier Science Sa, 2014)The effect of an ultrafine-grained (UFG) microstructure and subsequent aging treatment on the mechanical and wear behavior of a Cu-Cr-Zr alloy was investigated. The results indicate that the precipitates dispersed within ... -
Effect of two-pass friction stir processing on the microstructure and mechanical properties of as-cast binary Al-12Si alloy
Aktarer, S. M.; Sekban, D. M.; Saray, Onur; Kucukomeroglu, T.; Ma, Z. Y.; Purcek, G. (Elsevier Science Sa, 2015)The effect of two-pass friction stir processing (FSP) on the microstructural evolution, mechanical properties and impact toughness of as-cast Al-12Si alloy was investigated systematically. Severe plastic deformation imposed ... -
Formability of friction stir processed low carbon steels used in shipbuilding
Sekban, D. M.; Akterer, S. M.; Saray, Onur; Ma, Z. Y.; Purcek, G. (Journal Mater Sci Technol, 2018)The stretch formability of a low carbon steel processed by friction stir processing (FSP) was studied under biaxial loading condition applied by a miniaturized Erichsen test. One-pass FSP decreased the ferritic grain size ... -
Improvement of formability of ultrafine-grained materials by post-SPD annealing
Saray, Onur; Purcek, G.; Karaman, I.; Maier, H. J. (Elsevier Science Sa, 2014)Ultrafine-grained (UFG) IF-steel, as an example of an essentially single phase UFG microstructure, was annealed at different temperatures and time intervals in order to improve its formability by achieving a good ... -
Microstructure, mechanical properties and formability of friction stir processed interstitial-free steel
Sekban, D. M.; Saray, Onur; Aktarer, S. M.; Purcek, G.; Ma, Z. Y. (Elsevier Science Sa, 2015)The microstructure, mechanical properties and stretch formability of fine-grained (FG) interstitial-free steel (IF-steel) formed by friction stir processing (FSP) was investigated systematically. One-pass FSP drastically ... -
THE RELATIONSHIP BETWEEN FORCE-EXTENSION DIAGRAM AND VISUAL INSPECTION ON THE EDGE CRACKING TENDENCY OF DUAL PHASE STEELS
Ardali, Refiye; Yildirim, Omer; Sahin, Kubilay; Saray, Onur (Tanger Ltd, 2018)Light-weighting targets of the automotive sector requires to use of advanced high-strength steels (AHSS) with higher strength more extensively. However, as a common behavior, increasing strength levels of AHSS accompanied ... -
Room temperature superplasticity in fine/ultrafine-grained Zn-Al alloys with different phase compositions
Demirtas, M.; Yanar, H.; Saray, Onur; Purcek, G. (Trans Tech Publications Ltd, 2018)Three Zn-Al alloys, namely Zn-22Al, Zn-5Al and Zn-0.3Al, were subjected to equal-channel angular pressing (ECAP), and the effect of ECAP on their microstructure and room temperature (RT) superplastic behavior were investigated ...
