Influence of trace Sr additions on the microstructures and the mechanical properties of Mg-Al-La-based alloy

	Influence of trace Sr additions on the microstructures and the mechanical properties of Mg-Al-La-based alloy
	Yang, Qiang ; Bu, Fanqiang ; Zheng, Tian ; Meng,Fanzhi ; Liu,Xiaojuan ; Zhang,Deping ; Qiu,Xin ; Meng,Jian
刊名	materials science and engineering a-structural materials properties microstructure and processing
	2014
卷号	619 期号:8 页码:256-264
关键词	ALKALINE-EARTH ELEMENTS AZ31 MAGNESIUM ALLOY CREEP-BEHAVIOR TENSILE PROPERTIES CORROSION-RESISTANCE CAST MICROSTRUCTURE STRONTIUM AE42 ZR REFINEMENT
通讯作者	meng,j
英文摘要	the microstructure, tensile properties and creep behavior of the high-pressure die-cast mg-4al-4la-xsr (x=0, 0.12, 0.25, 0.50, wt%) alloys were thoroughly studied. first, the eutectic morphologies change drastically after trace sr addition, with some al11la3 particles becoming plate and their distributions being irregular to some extent. this is probably due to al4sr particles that act as the nucleation substrates for al11la3 phase during solidification. second, the tensile properties of ala44 alloy are distinctly improved by trace sr addition. for instance, the yield strength, ultimate tensile strength, and elongation at 150 degrees c are improved by 13%, 10%, and 16%, respectively, after 0.25 wff sr addition. third, the influence of trace sr addition on the creep behavior of ala44 alloy is complicated that the creep resistance is slightly improved at 200 degrees c and 75 mpa, but it is deteriorated after trace sr addition at 200 degrees c and 85 mpa. finally, the underlying causes of the complicated creep behavior and the operative creep mechanisms for the studied alloys are analyzed and discussed based on tem observations. (c) 2014 elsevier b.v. all rights reserved.
收录类别	SCI
语种	英语
公开日期	2015-10-27
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/57412]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Yang, Qiang,Bu, Fanqiang,Zheng, Tian,et al. Influence of trace Sr additions on the microstructures and the mechanical properties of Mg-Al-La-based alloy[J]. materials science and engineering a-structural materials properties microstructure and processing,2014,619(8):256-264.
APA	Yang, Qiang.,Bu, Fanqiang.,Zheng, Tian.,Meng,Fanzhi.,Liu,Xiaojuan.,...&Meng,Jian.(2014).Influence of trace Sr additions on the microstructures and the mechanical properties of Mg-Al-La-based alloy.materials science and engineering a-structural materials properties microstructure and processing,619(8),256-264.
MLA	Yang, Qiang,et al."Influence of trace Sr additions on the microstructures and the mechanical properties of Mg-Al-La-based alloy".materials science and engineering a-structural materials properties microstructure and processing 619.8(2014):256-264.