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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
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume28Issue:2Pages:340-347
AbstractIn 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.
description.department[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
KeywordMechanical-properties Hot Deformation Magnesium Alloys High-strength Sn Addition Microstructure Zn Behavior Evolution Tensile
Subject AreaMetallurgy & Metallurgical Engineering
Funding OrganizationNational Key Research and Development Plan, China [2016YFB0301105]; Natural Science Foundation of Shandong Province, China [ZR2015YL007, ZR2015EQ019]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79543
Collection中国科学院金属研究所
Corresponding AuthorZhao, 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.
Recommended Citation
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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