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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
Source PublicationPROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON ADVANCES IN ENERGY AND ENVIRONMENTAL SCIENCE 2015
ISSN2352-5401
Volume31Pages:239-243
AbstractEffects 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.
description.department[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
KeywordMg-al-si-sr Alloy Al Content Microstructure Tensile Properties Hardness
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74783
Collection中国科学院金属研究所
Corresponding Authormabaichang@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
Recommended Citation
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.
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