Effects of different Al contents on as-cast microstructure and properties of Mg-Al-Si-Sr alloy

IMR OpenIR

	Effects of different Al contents on as-cast microstructure and properties of Mg-Al-Si-Sr alloy
	Ma, Baichang; Wang, Jinwei; Zhou, Jixue; Liu, Yunteng; Zhao, Dongqing; Zhang, Linlin; Tang, Shouqiu; Yang, Yuansheng; mabaichang@126.com; wjinw_1989@163.com; zhoujx@sdas.org; liu_yunteng@126.com; zhaodq@sdas.org; 15966639521@163.com; tangshq@sdas.org; ysyang@imr.ac.cn
	2015
发表期刊	PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY AND ENVIRONMENTAL SCIENCE 2015
ISSN	2352-5401
卷号	31 页码:239-243
摘要	Effects of different Al additions (3wt.%, 5wt.%, 7wt.%, 9wt.% Al) on as-cast microstructure and properties of Mg-Al-1Si-0.5Sr alloy were studied. The average grain size decreases and then increases with the increasing of Al additions. There are polyhedral shape, fine fibers shape, a few Chinese script Mg2Si particles and beta-Mg17Al12 divorced eutectic phase appeared in the interdendritic area in Mg-3Al-1Si-0.5Sr alloys. With the increase of Al content, more and more beta-Mg17Al12 divorced eutectic phase appear in semi-continuous distribution. The lamellar-like shape beta-Mg17Al12 secondary-precipitated phase emerge with Al addition of 5wt.%, 7wt.% and 9wt.%. The optimum tensile properties of Mg-7Al-1Si-0.5Sr alloy can be obtained, where the ultimate strength, yield strength and elongation are 201.1MPa, 160.7MPa, 4.8% at ambient temperature and 164.5MPa, 128.0MPa, 7.4% at 150 degrees C respectively. The hardness increased with the increasing of Al content.
部门归属	[ma, baichang] shandong jianzhu univ, jinan, peoples r china ; [wang, jinwei ; zhou, jixue ; liu, yunteng ; zhao, dongqing ; zhang, linlin ; tang, shouqiu] shandong acad sci, new mat res inst, shandong key lab high strength lightweight metall, shandong engn res ctr lightweight automobiles mag, jinan, peoples r china ; [yang, yuansheng] chinese acad sci, inst met res, shenyang 110016, peoples r china
关键词	Mg-al-si-sr Alloy Al Content Microstructure Tensile Properties Hardness
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74783
专题	中国科学院金属研究所
通讯作者	mabaichang@126.com; wjinw_1989@163.com; zhoujx@sdas.org; liu_yunteng@126.com; zhaodq@sdas.org; 15966639521@163.com; tangshq@sdas.org; ysyang@imr.ac.cn
推荐引用方式 GB/T 7714	Ma, Baichang,Wang, Jinwei,Zhou, Jixue,et al. Effects of different Al contents on as-cast microstructure and properties of Mg-Al-Si-Sr alloy[J]. PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY AND ENVIRONMENTAL SCIENCE 2015,2015,31:239-243.
APA	Ma, Baichang.,Wang, Jinwei.,Zhou, Jixue.,Liu, Yunteng.,Zhao, Dongqing.,...&ysyang@imr.ac.cn.(2015).Effects of different Al contents on as-cast microstructure and properties of Mg-Al-Si-Sr alloy.PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY AND ENVIRONMENTAL SCIENCE 2015,31,239-243.
MLA	Ma, Baichang,et al."Effects of different Al contents on as-cast microstructure and properties of Mg-Al-Si-Sr alloy".PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY AND ENVIRONMENTAL SCIENCE 2015 31(2015):239-243.