Effect of icosahedral phase on the thermal stability and ageing response of a duplex structured Mg-Li alloy

IMR OpenIR

	Effect of icosahedral phase on the thermal stability and ageing response of a duplex structured Mg-Li alloy
	D. K.; Wang Xu, B. J.; Li, C. Q.; Zu, T. T.; Han, E. H.
	2015
发表期刊	Materials & Design
ISSN	0261-3069
卷号	69 页码:124-129
摘要	The formation of I-phase (Mg3Zn6Y, icosahedral structure) can suppress the lithium diffusion from beta-Li (Mg solid solution in Li) to alpha-Mg (Li solid solution in Mg) and then remarkably improve the thermal stability of beta-Li. Although the lithium diffusion is suppressed by I-phase pockets, quick precipitation and growth of MgLiZn particles can lead to the age-softening response of beta -Li. However, a normal age-hardening response of alpha-Mg can be maintained. Thus, the macro hardness of the Mg-6% Li-6% Zn-1.2% Y alloy depends on the competition between the age-softening of beta-Li and age-hardening of alpha-Mg. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[xu, d. k. ; wang, b. j. ; li, c. q. ; zu, t. t. ; han, e. h.] chinese acad sci, inst met res, environm corros ctr, shenyang 110016, peoples r china. ; xu, dk (reprint author), chinese acad sci, inst met res, environm corros ctr, 62 wencui rd, shenyang 110016, peoples r china. ; dkxu@imr.ac.cn
关键词	Mg-li Alloy I-phase Ageing Treatment Precipitation Hardness Y-zr Alloys Mechanical-properties Zn/y Ratio Microstructure Behavior Crystals
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73986
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. K.,Wang Xu, B. J.,Li, C. Q.,et al. Effect of icosahedral phase on the thermal stability and ageing response of a duplex structured Mg-Li alloy[J]. Materials & Design,2015,69:124-129.
APA	D. K.,Wang Xu, B. J.,Li, C. Q.,Zu, T. T.,&Han, E. H..(2015).Effect of icosahedral phase on the thermal stability and ageing response of a duplex structured Mg-Li alloy.Materials & Design,69,124-129.
MLA	D. K.,et al."Effect of icosahedral phase on the thermal stability and ageing response of a duplex structured Mg-Li alloy".Materials & Design 69(2015):124-129.