Yazar "Demirtaş, Muhammet" için listeleme
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Effect of hexagonal boron nitride (h-BN) addition on friction behavior of low-steel composite brake pad material for railway applications
Yanar, Harun; Pürçek, Gençağa; Demirtaş, Muhammed; Ayar, Hasan Hüseyin (Elsevier, 2021)In this study, low-steel composite friction materials containing different amount of h-BN were developed for railway vehicles. Addition of h-BN has no considerable effect on mechanical properties of the matrix structure. ... -
Effects of aging state on the low-cycle fatigue properties of 2024 aluminum alloy
Gong, B. S.; Zhang, Z. J.; Hou, J. P.; Liu, R.; Duan, Q. Q.; Wang, H. W.); Wang, X. G.; Liu, H. Z.; Wang, H.; Pürçek, Gençağa; Demirtaş, Muhammet; Yanar, Hande; Zhang, Z. F. (Elsevier, 2024)To reveal the effects of aging state on the low-cycle fatigue (LCF) performance of 2024 Al alloy, LCF experiments were conducted on the 2024 Al alloy with three aging states (underaged (UA), peak-aging (PA) and overaged ... -
Enhancing mechanical and tribological properties of Ni3Al-15vol%TiC composite by high current pulsed electron beam irradiation
Demirtaş, Muhammet; Ivanov, Konstantin V.; Pürçek, Gençağa; Yanar, Harun (Elsevier, 2022)Effects of high current pulsed electron beam irradiation (HCPEBI) on the surface microstructure, mechanical properties, room and high temperature tribological behavior of the Ni3Al-15vol%TiC composite were investigated. ... -
Investigation on the fatigue behavior of 7075 aluminum alloy at different aging states
Gong, B. S.; Zhang, Z. J.; Hou, J. P.; Li, R. H.; Liu, R.; Duan, Q. Q.; Wang, X. G.; Liu, H. Z.; Cong, F. G.; Pürçek, Gencay; Yanar, Hande; Demirtaş, Muhammet; Zhang, Z. F. (Elsevier, 2023)To study the effect of the aging state on the low-cycle fatigue (LCF) performance of 7075 Al alloy, LCF experiments with different strain amplitudes (& UDelta;& epsilon;/2 = 0.5%- & UDelta;& epsilon;/2 = 0.9%) were conducted ... -
The mechanical compression performance of ultra-fine grained stainless steel pyramidal lattice core
Kuleyin, Hamdi; Gümrük, Recep; Yanar, Harun; Demirtaş, Muhammet; Pürçek, Gençağa (Taylor & Francis Inc, 2019)Severe plastic deformation (SPD) techniques are prospective ones having ability for desirable high mechanical properties to be achieved without any chemical change in metals. Equal-channel angular pressing (ECAP), one of ... -
Microstructural, mechanical and tribological characterization of Cu-Co-Ni-Be alloy processed via equal channel angular pressing
Demirtaş, Muhammet (Elsevier, 2021)Effects of different processes including various combinations of equal channel angular pressing (ECAP) and aging on the microstructure, mechanical and tribological properties of the quadruple Cu-Co-Ni-Be alloy were ... -
Microstructural, mechanical and tribological properties of ultrafine-grained Cu-Cr-Zr alloy processed by high pressure torsion
Pürçek, Gençağa; Yanar, Harun; Demirtaş, Muhammet; Shangina, Daria V.; Bochvar, Natalia R.; Dobatkin, Sergey V. (Elsevier Science Sa, 2020)The effect of temperature on tribological properties of coarse grained (CG) and ultrafine-grained (UFG) Cu-Cr-Zr alloy processed via high pressure torsion (HPT) was investigated. Dominant wear mechanism depends on both ... -
Optimization of strength, ductility and wear resistance of low-carbon grade A shipbuilding steel by post-ECAP annealing
Demirtaş, Muhammet; Sekban, Dursun Murat (EDP Sciences, 2021)Effect of equal channel angular pressing (ECAP) and subsequent annealing on the microstructure, mechanical properties and tribological behavior of grade A shipbuilding steel was investigated. Coarse-grained microstructure ... -
An overview of the principles of low-temperature superplasticity in metallic materials processed by severe plastic deformation
Demirtaş, Muhammet; Pürçek, Gençağa (Japan Institute of Metals (JIM), 2023)Low-temperature superplasticity (LTS) is crucial to reduce manufacturing cost and to enhance the applications of superplastic forming. It is well known that grain refinement is the key point to decrease the temperature at ... -
Processing Of Grade A Low Carbon Steel By Equal Channel Angular Pressing
Demirtaş, Muhammet (2020)The present study aims to analyze the effect of equal channel angular pressing (ECAP) on the microstructural and mechanical properties as well as the impact energy of low carbon steel. Grade A steel was processed using ... -
Research on anisotropy of the 7B50 super thick plate
Wang, H.; Zhang, Z. J.; Cong, F. G.; Ren, W. C.; Gong, B. S.; Liu, R.; Li, R. H.; Zhou, X. H.; Pürçek, Gençağa; Demirtaş, Muhammet; Bathaee, F.; Abedi, H. R.; Zhang, Z. F. (Elsevier, 2023)In this study, the microstructure and in-plane anisotropy (IPA) of mechanical properties along the normal direction (ND) of the 7B50 Al super thick plate are mainly studied. When adopting the same heat treatment for the ... -
Room temperature superplaticity in fine/ultrafine grained materials subjected to severe plastic deformation
Demirtaş, Muhammet; Pürçek, Gençağa (Japan Inst Metals & Materials, 2019)Achieving superplasticity at high temperatures and at very low strain rates is considered to be the most important disadvange of superplastic forming processes. Therefore, it is crucial to achieve superplastic behavior at ...
