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Room temperature plastic deformation behavior of ZrCuNiAl bulk metallic glassesPing-jun Tao1),Yuan-zheng Yang1),Xiao-jun Bai2),Zhi-wei Xie1),and Xian-chao Chen1) 1) Faculty of Materials and Energy... and thermal stability.Uniaxial compression and Rockwell indentation tests were adopted to study the plastic deformation behavior at room temperature.The results show that the glass transition temperature......
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J. Cent. South Univ. (2021) 28: 338-350 DOI: https://doi.org/10.1007/s11771-021-4606-0 Effect of processing parameters on flow behaviors and microstructure during high temperature deformation... expand with increasing strain during high temperature deformation of GH4586 superalloy. Key words: GH4586 superalloy; apparent activation energy for deformation; strain rate sensitivity; constitutive model......
dispersive spectrum(EDS) and transmission electron microscope(TEM) were used to study the microstructure evolution during high temperature deformation. The results show that, the peak stress value... the interaction between dislocation and precipitated particles inside the twinning lamellar. Key words: Ti-6Al-4V alloy; scandium; high temperature deformation; strengthening  ......
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deformation temperature and decreasing strain rate, and the proposed constitutive equation well predicts the flow stress of 20CrMnTi during the high temperature deformation. Key words: 20CrMnTi; constitutive... the flow stress, strain rate, and temperatures, especially at high temperature. In this work, the hot deformation behavior of 20CrMnTi steel at high temperature was studied by the isothermal compression......
are calculated based on kinetics analysis of high temperature deformation, which are then used for deformation mechanism analysis combined with microstructure investigation. The results show that deformation mechanisms vary with deformation conditions: at low strain rate range, the deformation mechanism is mainly dislocation slip; at low temperature and high strain rate range, twinning is the main......
Relationship between boundary misorientation angle and true strain during high temperature deformation of 7050 aluminum alloy HU Hui-e(胡会娥)1, YANG Li(杨 丽)1, ZHEN Liang(甄 良)1, SHAO Wen-zhu(邵文柱)1... evolution during high temperature deformation of aluminum alloy[5, 14-16]. LIU et al[5] suggested that the average boundary misorientation angle is strongly dependent on the strain during high temperature......
Evolution of dislocation cells during plastic deformation ZHOU Zhi-min(周志敏)1, SUN Yan-rui(孙艳蕊)1, ZHOU Hai-tao(周海涛)2 (1. College of Science, Northeastern University, Shenyang 110004, China; 2.... By using severe plastic deformation(SPD) techniques, materials with fine grain size as small as 200-250nm have been obtained. However, the nature of the grain boundaries has not been theoretically......
Processing of AM60 magnesium alloy by hydrostatic cyclic expansion extrusion at elevated temperature as a new severe plastic deformation methodFarshad Samadpour,Ghader Faraji,Armin SiahsaraniSchool... is proposed as a method for processing less deformable materials such as magnesium and for producing long ultrafine-grained rods. In the HCEE process at elevated temperatures, high-pressure molten linear......