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Constitutive modeling for dynamic recrystallization kinetics of Mg-4Zn-2Al-2Sn alloy
Zhao, DQ; Yang, YS; Zhou, JX; Liu, Y; Tang, SQ; Zhao, DQ (reprint author), Qilu Univ Technol, Adv Mat Inst, Shandong Prov Key Lab High Strength Lightweight M, Shandong Acad Sci, Jinan 250014, Shandong, Peoples R China.; Zhao, DQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
2018-02-01
发表期刊TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
卷号28期号:2页码:340-347
摘要In order to have a better understanding of the hot deformation behavior of the as-solution-treated Mg-4Zn-2Sn-2Al (ZAT422) alloy, a series of compression experiments with a height reduction of 60% were performed in the temperature range of 498-648 K and the strain rate range of 0.01-5 s(-1) on a Gleeble 3800 thermo-mechanical simulator. Based on the regression analysis by Arrhenius type equation and Avrami type equation of flow behavior, the activation energy of deformation of ZAT422 alloy was determined as 155.652 kJ/mol, and the constitutive equations for flow behavior and the dynamic recrystallization (DRX) kinetic model of ZAT422 alloy were established. Microstructure observation shows that when the temperature is as low as 498 K, the DRX is not completed as the true strain reaches 0.9163. However, with the temperature increasing to 648 K, the lower strain rate is more likely to result in some grains' abnormal growth.; In order to have a better understanding of the hot deformation behavior of the as-solution-treated Mg-4Zn-2Sn-2Al (ZAT422) alloy, a series of compression experiments with a height reduction of 60% were performed in the temperature range of 498-648 K and the strain rate range of 0.01-5 s(-1) on a Gleeble 3800 thermo-mechanical simulator. Based on the regression analysis by Arrhenius type equation and Avrami type equation of flow behavior, the activation energy of deformation of ZAT422 alloy was determined as 155.652 kJ/mol, and the constitutive equations for flow behavior and the dynamic recrystallization (DRX) kinetic model of ZAT422 alloy were established. Microstructure observation shows that when the temperature is as low as 498 K, the DRX is not completed as the true strain reaches 0.9163. However, with the temperature increasing to 648 K, the lower strain rate is more likely to result in some grains' abnormal growth.
部门归属[zhao, dong-qing ; yang, yuan-sheng ; zhou, ji-xue ; liu, yu ; tang, shou-qiu] qilu univ technol, adv mat inst, shandong prov key lab high strength lightweight m, shandong acad sci, jinan 250014, shandong, peoples r china ; [zhao, dong-qing ; yang, yuan-sheng] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [zhou, ji-xue ; tang, shou-qiu] qilu univ technol, shandong acad sci, adv mat inst, shandong engn res ctr lightweight automobiles mag, jinan 250014, shandong, peoples r china
关键词Mechanical-properties Hot Deformation Magnesium Alloys High-strength Sn Addition Microstructure Zn Behavior Evolution Tensile
学科领域Metallurgy & Metallurgical Engineering
资助者National Key Research and Development Plan, China [2016YFB0301105]; Natural Science Foundation of Shandong Province, China [ZR2015YL007, ZR2015EQ019]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79543
专题中国科学院金属研究所
通讯作者Zhao, DQ (reprint author), Qilu Univ Technol, Adv Mat Inst, Shandong Prov Key Lab High Strength Lightweight M, Shandong Acad Sci, Jinan 250014, Shandong, Peoples R China.; Zhao, DQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Zhao, DQ,Yang, YS,Zhou, JX,et al. Constitutive modeling for dynamic recrystallization kinetics of Mg-4Zn-2Al-2Sn alloy[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2018,28(2):340-347.
APA Zhao, DQ.,Yang, YS.,Zhou, JX.,Liu, Y.,Tang, SQ.,...&Zhao, DQ .(2018).Constitutive modeling for dynamic recrystallization kinetics of Mg-4Zn-2Al-2Sn alloy.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,28(2),340-347.
MLA Zhao, DQ,et al."Constitutive modeling for dynamic recrystallization kinetics of Mg-4Zn-2Al-2Sn alloy".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 28.2(2018):340-347.
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