Improving mechanical properties of age-hardenable Mg-6Zn-4Al-1Sn alloy processed by double-aging treatment

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	Improving mechanical properties of age-hardenable Mg-6Zn-4Al-1Sn alloy processed by double-aging treatment
	Zhu, Shaozhen; Luo, Tianjiao; Yang, Yuansheng; Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
	2017-11-01
发表期刊	JOURNAL MATER SCI TECHNOL
ISSN	1005-0302
卷号	33 期号:11 页码:1249-1254
摘要	Microstructure and mechanical properties of a new high-strength Mg-6Zn-4Al-1Sn alloy were investigated. Microstructure of the as-cast Mg alloy exhibited partially divorced characteristics. The dendritic structure of the Mg-6Zn-4Al alloy was significantly refined with the addition of 1% ( in weight) Sn, but Mg2Sn phases were not formed. In addition, an icosahedral quasi-crystal phase was formed in the as-cast Mg-6Zn-4Al-1Sn alloy. It was found that after the double-aging treatment through two different heat treatments on the Mg-6Zn-4Al-1Sn alloy, the precipitates were finer and far more densely dispersed in the matrix compared with single-aged counterpart, resulting in a significant improvement in tensile strength with yield strength, ultimate tensile strength and elongation of 175 MPa, 335 MPa and 11%, respectively. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; Microstructure and mechanical properties of a new high-strength Mg-6Zn-4Al-1Sn alloy were investigated. Microstructure of the as-cast Mg alloy exhibited partially divorced characteristics. The dendritic structure of the Mg-6Zn-4Al alloy was significantly refined with the addition of 1% ( in weight) Sn, but Mg2Sn phases were not formed. In addition, an icosahedral quasi-crystal phase was formed in the as-cast Mg-6Zn-4Al-1Sn alloy. It was found that after the double-aging treatment through two different heat treatments on the Mg-6Zn-4Al-1Sn alloy, the precipitates were finer and far more densely dispersed in the matrix compared with single-aged counterpart, resulting in a significant improvement in tensile strength with yield strength, ultimate tensile strength and elongation of 175 MPa, 335 MPa and 11%, respectively. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
部门归属	[zhu, shaozhen ; luo, tianjiao ; yang, yuansheng] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china ; [zhu, shaozhen] northeastern univ, sch mat sci & engn, shenyang 110819, liaoning, peoples r china ; [yang, yuansheng] shandong key lab high strength lightweight metall, jinan 250014, shandong, peoples r china
关键词	Magnesium Alloy Mg-zn-al-sn Double-aging Treatment Mechanical Properties
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者	National Basic Research Program of China [2013CB632205]; National Key Research and Development Program of China [2016YFB301105]
收录类别	SCI
语种	英语
WOS记录号	WOS:000416994500004
引用统计	被引频次：26[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/321006/78995
专题	中国科学院金属研究所
通讯作者	Yang, YS (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Zhu, Shaozhen,Luo, Tianjiao,Yang, Yuansheng,et al. Improving mechanical properties of age-hardenable Mg-6Zn-4Al-1Sn alloy processed by double-aging treatment[J]. JOURNAL MATER SCI TECHNOL,2017,33(11):1249-1254.
APA	Zhu, Shaozhen,Luo, Tianjiao,Yang, Yuansheng,&Yang, YS .(2017).Improving mechanical properties of age-hardenable Mg-6Zn-4Al-1Sn alloy processed by double-aging treatment.JOURNAL MATER SCI TECHNOL,33(11),1249-1254.
MLA	Zhu, Shaozhen,et al."Improving mechanical properties of age-hardenable Mg-6Zn-4Al-1Sn alloy processed by double-aging treatment".JOURNAL MATER SCI TECHNOL 33.11(2017):1249-1254.