Effects of Zn content on microstructures and mechanical properties of Mg-Zn-RE-Sn-Zr-Ca alloys

doi:10.1016/j.msea.2014.03.111

	Effects of Zn content on microstructures and mechanical properties of Mg-Zn-RE-Sn-Zr-Ca alloys
	Chen, T. J.; Zhang, D. H.; Wang, W.; Ma, Y.; Hao, Y.
	2014-06-23
发表期刊	Materials Science and Engineering A
ISSN	09215093
卷号	607 页码:17-27
摘要	The effects of Zn content on microstructures and mechanical properties of Mg-Zn-RE alloys have been investigated. The results indicate that RE-rich phases will change from the MgY and Mg12Nd binary phases in turn to Z (Mg12ZnRE), Z+W (Mg3Zn3RE2), W and W+I (Mg3Zn6RE) ternary phases as the Zn content increases from 0% to 4%. The grain size decreases when the Zn content increases from 0% to 2% and then increases, which is attributed to the variation of growth restriction factor resulted from the phase changes. The hardness continuously increases due to the formation of the ternary phases and their amount increase. The UTS and elongation first increase as the Zn content increases within the range of 0-2% and then decrease. The W phase is an ideal strengthening phase because the grain bonding strength of the unique W phase-containing alloy is higher than that of the Z or Z+W phase-containing alloy. Shrinkage porosities are easy to generate and the ternary phases distribute more and more continuously due to their amount increase when the Zn content exceeds 2%. The fracture regime changes from intergranular mode to transgranular mode as the Zn content increases from 0% to 2%, and then turns into transgranular mode again. © 2014 Elsevier B.V.
关键词	Binary alloys Calcium alloys Magnesium alloys Mechanical properties Microstructure Neodymium alloys Textures Tin alloys Zircaloy Growth restriction Intergranular modes Mg-Zn-RE alloy Microstructures and mechanical properties Shrinkage porosity Strengthening phase Ternary phase Transgranular modes
DOI	10.1016/j.msea.2014.03.111
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000337644000004
出版者	Elsevier Ltd
EI入藏号	20141717619307
EI主题词	Zinc alloys
EI分类号	546.2 Tin and Alloys ; 546.3 Zinc and Alloys ; 547.2 Rare Earth Metals ; 549.2 Alkaline Earth Metals ; 951 Materials Science
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150370
专题	材料科学与工程学院
通讯作者	Chen, T. J.
作者单位	Lanzhou Univ Technol, Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院
第一作者的第一单位	材料科学与工程学院
推荐引用方式 GB/T 7714	Chen, T. J.,Zhang, D. H.,Wang, W.,et al. Effects of Zn content on microstructures and mechanical properties of Mg-Zn-RE-Sn-Zr-Ca alloys[J]. Materials Science and Engineering A,2014,607:17-27.
APA	Chen, T. J.,Zhang, D. H.,Wang, W.,Ma, Y.,&Hao, Y..(2014).Effects of Zn content on microstructures and mechanical properties of Mg-Zn-RE-Sn-Zr-Ca alloys.Materials Science and Engineering A,607,17-27.
MLA	Chen, T. J.,et al."Effects of Zn content on microstructures and mechanical properties of Mg-Zn-RE-Sn-Zr-Ca alloys".Materials Science and Engineering A 607(2014):17-27.