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J. Cent. South Univ. Technol. (2009) 16: 0738-0742 DOI: 10.1007/s11771-009-0122-3 Deformation division of metal flow behavior during extrusion process of 7075 aluminum alloy LI Feng(李 峰)1, CHU.... The characteristic quantities such as the second invariant of the deviator stress J2 and Lode’s coefficient μ were employed for the division of deformation area. The results show that when the metal is extruded......
Study on the Deformation Behavior of Mg-3.6%Er Magnesium Alloy Cui Jianzhong1,Jia Weiping2,Wang Zhongjun2 (1.The Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang 110004,China;2.School of Materials Science and Engineering,University of Science and Technology Liaoning,Anshan 114051,China) Abstract:The deformation behaviour......
at strain rate range from 0.01 s–1 to 10 s–1 and deformation temperature range from 1123 K to 1273 K. According to the experimental results, the constitutive equation of 20CrMnTi was established based... to the deformation temperature and stain rate, which effectively improved the prediction accuracy of the developed constitutive equation. The results show that the flow stress decreases with increasing......
Deformation temperature and postdeformation annealing effects on severely deformed TiNi alloy by equal channel angular extrusionZhenhua Li and Xianhua Cheng School of Mechanical and Power Engineering... (ECAE) using hot-forged Ti-50.3at%Ni alloy as the raw material and the effects of deformation temperature and postdeformation annealing on the severely deformed TiNi alloy by ECAE were investigated......
J. Cent. South Univ. Technol. (2008) 15(s1): 009-012 DOI: 10.1007/s11771-008-303-5 Rheology elasticity determined by deformation of stretchable molecular trains XIAO Jian-hua(肖建华) (Measurement... to express the rheology deformation. Based on this micro geometrical deformation, the macro deformation of medium was expressed. Then, using intrinsic elasticity concept, the stress-strain relation......
texture, and this texture effect was remarkably weakened with the increase of deformation temperature. Deformation structure was dominant at 100?C, and was replaced by dynamic recrystallization structure when the deformation temperature increased to 200?C and 300?C. The texture presented a strong texture(transitional texture in the RD sample and basal texture in the TD sample) at 100?C, but its......
Deformation behavior of SiC particle reinforced Al matrix composites based on EMA model CHENG Nan-pu(程南璞)1, 2, ZENG Su-min(曾苏民)1, 2, 3, YU Wen-bin(于文斌)1, 2, LIU Zhi-yi(刘志义)1, CHEN Zhi-qian(陈志谦)2... on the elastoplastic deformation behavior in Al matrix composites reinforced by SiC particles with an average size of 5 μm and volume fraction of 12% were quantitatively calculated by using the expanded effective......
in many fields because of its eminent formability under elevated temperature. In this work, the deformation behavior of Q345E steel was investigated by hot compression experiments on Gleeble-3500... from increasing deformation temperature and decreasing strain rate. The mathematical relationship between dynamic softening degree and deformation conditions is established to predict the dynamic......
Influence of Deformation Degree and Cooling Rate on Microstructure and Phase Transformation Temperature of B1500HS SteelHui-Ping Li,Rui Jiang,Lian-Fang He,Hui Yang,Cheng Wang,Chun-Zhi ZhangSchool..., the phase transformation temperature rises with an increase in the deformation degree, and the sizes of both the martensite and bainite phases reduce due to the austenite grain refinement induced......
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