Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy

doi:10.1016/j.matchar.2019.109896

IMR OpenIR

	Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy
	Wang, Cong 1,2; Liu, Yunteng 3; Lin, Tao 3; Luo, Tianjiao 2; Zhao, Yuhong 4; Hou, Hua 4; Yang, Yuansheng 2
通讯作者	Yang, Yuansheng(ysyang@imr.ac.cn)
	2019-11-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	157 页码:9
摘要	The hot deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy containing coarse second phase particles is studied. The flow stress increases with decreasing temperature and increasing strain rate. The stress-strain result is fitted to the hyperbolic sine equation to obtain the constitutive equation of the alloy. The processing map is constructed and it shows that low temperature and high strain rate lead to both low efficiency of power dissipation and instability and two domains with high efficiency of power dissipation out of the instability area is suitable for hot processing of the alloy: 580 K-670 K, 0.001 s(-1)-0.01 s(-1) and 630 K-670 K, 0.01 s(-1)-1 s(-1), the latter one is recommended for hot deformation for the higher strain rate. It was revealed that the effect of coarse particles on the restoration mechanism is dependent on the deformation condition. Under low Zener-Hollomon value, particles hinder discontinuous dynamic recrystallization through grain boundary pinning making dynamic recovery and continuous dynamic recrystallization the main restoration mechanism. Under high Zener-Hollomon value, the misorientation gradient near particles increases and the efficiency of particle stimulated nucleation increases. The enhanced particle stimulated nucleation accompanied by more active twinning and twin related recrystallization make the fraction of dynamic recrystallized grain to be higher under high Zener-Hollomon value.
关键词	Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy Hot compression Processing map Coarse particles Microstructure evolution
资助者	National Key Research and Development Program of China ; China National Key Research and Development Plan Project
DOI	10.1016/j.matchar.2019.109896
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFB0301105] ; China National Key Research and Development Plan Project[2017YFB0103904]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:000496898300035
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136796
专题	中国科学院金属研究所
通讯作者	Yang, Yuansheng
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shandong Acad Sci, Adv Mat Inst, Shandong Key Lab High Strength Lightweight Metall, Qingdao 250014, Shandong, Peoples R China 4.North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Cong,Liu, Yunteng,Lin, Tao,et al. Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy[J]. MATERIALS CHARACTERIZATION,2019,157:9.
APA	Wang, Cong.,Liu, Yunteng.,Lin, Tao.,Luo, Tianjiao.,Zhao, Yuhong.,...&Yang, Yuansheng.(2019).Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy.MATERIALS CHARACTERIZATION,157,9.
MLA	Wang, Cong,et al."Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy".MATERIALS CHARACTERIZATION 157(2019):9.