Effects of Nd or Zr Addition on Microstructure and Mechanical Properties of As-Cast Mg-Zn-Y Alloy

doi:10.2320/matertrans.M2016035

	Effects of Nd or Zr Addition on Microstructure and Mechanical Properties of As-Cast Mg-Zn-Y Alloy
	Chen, Ti Jun; Zhang, Da Hua; Wang, Wei; Ma, Ying; Hao, Yuan
	2016
发表期刊	MATERIALS TRANSACTIONS
ISSN	1345-9678
卷号	57 期号:8 页码:1287-1295
摘要	The effects of Nd or Zr addition on microstructure and mechanical properties of casting Mg-Zn-RE alloy have been investigated. The results indicate that the optimum contents of Nd and Zr are 0.5% and 0.3% respectively. The less or higher contents all increase grain size and accelerate the formation of shrinkage porosity, and thus decrease tensile properties and change fracture regime from transgranular mode to intergranular mode during tensile tests. The Mg-Zn-RE ternary phases transform from W (Mg3Zn3(Nd, Y)(2)) in turn into W + Z (Mg12Zn(Nd, Y)) and Z as the Nd content increases and their distribution gradually changes from small discontinuous lath form to continuous network form. The grain bonding strength of an alloy with a certain amount of W phase that distributes in a discontinuous form is high than that of the alloy with the Z phase, and thus the W phase is an ideal strengthening phase. The alloy with 0.5 Nd and 0.3% Zr, named ZW21 alloy, has the smallest grains and highest grain bonding strength, and so has the highest comprehensive mechanical properties.
关键词	magnesium-zinc-RE alloy ternary phase microstructure mechanical properties fracture regime
DOI	10.2320/matertrans.M2016035
收录类别	SCI
语种	英语
资助项目	Program for New Century Excellent Talents in University of China[NCET-10-0023] ; National Basic Research Program of China[G2010CB635106]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000383451200012
出版者	JAPAN INST METALS
EI入藏号	20163102656308
EI分类号	534.2 Foundry Practice - 546.3 Zinc and Alloys - 547.2 Rare Earth Metals - 549.2 Alkaline Earth Metals - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 951 Materials Science
引用统计	被引频次：4[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/36042
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Chen, Ti Jun
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Chen, Ti Jun,Zhang, Da Hua,Wang, Wei,et al. Effects of Nd or Zr Addition on Microstructure and Mechanical Properties of As-Cast Mg-Zn-Y Alloy[J]. MATERIALS TRANSACTIONS,2016,57(8):1287-1295.
APA	Chen, Ti Jun,Zhang, Da Hua,Wang, Wei,Ma, Ying,&Hao, Yuan.(2016).Effects of Nd or Zr Addition on Microstructure and Mechanical Properties of As-Cast Mg-Zn-Y Alloy.MATERIALS TRANSACTIONS,57(8),1287-1295.
MLA	Chen, Ti Jun,et al."Effects of Nd or Zr Addition on Microstructure and Mechanical Properties of As-Cast Mg-Zn-Y Alloy".MATERIALS TRANSACTIONS 57.8(2016):1287-1295.

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