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Microstructure evolution model based on deformation mechanism of titanium alloy in hot forming LI Xiao-li(李晓丽), LI Miao-quan(李淼泉) (School of Materials Science and Engineering, Northwestern... to the process variables in deformation process of metals and alloys. A microstructure evolution model of a titanium alloy in hot forming, which included dislocation density rate and primary α phase......
Twinning during hot compression of ZK30+0.3Yb magnesium alloy YE Cheng-wu(叶呈武), LIU Zhi-yi(刘志义),ZHANG Kun(张 坤), ZHENG Qing-chun(郑青春) (School of Materials Science and Engineering, Central..." and the stress concentration of "T1" will be relaxed by the deformation of twin "T2" [15]. At the same time, if the twins arrange Fig.4 Microstructure evolution of ZK30+0.3Yb alloy during compression......
by isothermal compression testusing Gleeble1500 dynamic hot-simulation testing machine. The results show that the A1 sheets possess the remarkable characteristic of steady state flow stress when... by no or conventional melt-treatment, hot deformation activation energy of Al sheets prepared by high-efficient melt-treatment is the smallest (Q = 168.0kJ/mol), which reveals that the hot working......
Hot deformation behavior and processing map of Mg-2Zn-1Al-0.2RE alloyYanxia Niu,Jian Hou,Fangkun Ning,Xingrui Chen,Yonghui Jia,Qichi LeKey Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University摘 要:In this study,uniaxial hot compression tests were carried out between 200 and 400℃ over strain rates of0.001-1......
Hot deformation behavior and processing map of Mg-2Zn-1Al-0.2RE alloyYanxia Niu,Jian Hou,Fangkun Ning,Xingrui Chen,Yonghui Jia,Qichi LeKey Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University摘 要:In this study,uniaxial hot compression tests were carried out between 200 and 400℃ over strain rates of0.001-1......
rate or deformation temperature for thermal simulation compression of hot extruded-annealed FGH96 alloy 图4 热挤压-退火态FGH96合金热模拟压缩峰值应力与Z参数的关系 Fig. 4 Dependence of peak stress on Z parameter...态再结晶晶粒. 图9 热挤压-退火态FGH96合金在不同变形条件下热模拟压缩后的宏观形貌图 Fig. 9 Macrographs of hot extruded-annealed FGH96 alloy after thermal simulation compression at different deformation conditions 3 结论 1......
by isothermal hot compressive testing with the compression ratio of 70%.The results reveal that the strain rate and the temperature strongly affect the flow stress during hot deformation and that flow stress... UniversityJinchuan Nickel and Cobalt Research and Engineering Institute,Jinchuan Group Nickel Alloy Co.Ltd.摘 要:The hot deformation behavior of pure nickel......
as: (4) Fig.2 True stress-true strain curves at various deformation conditions during hot compression For kinetics analysis, feature stress data (peak stress or steady...): 577-583. [15] POLOLER J P. High temperature deformation of crystal [M]. GUAN De-lin, transl. Dalian: Dalian University of Technology Press, 1989. (in Chinese) [16] XU Bin. Study on the hot compression......
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significant effects on the microstructure and thermal expansion of this alloy, its hot deformation behavior has been rarely documented. Thus, in current research hot compression tests have been conducted... for 10 min at deformation temperature. After hot compression test, the specimens were cut along their longitudinal axes and prepared by the standard metallographic techniques for microstructural......