Effect of Sr addition on the grain refinement of AZ31 magnesium alloys

被引：1
|
作者：
Renju Cheng [1 ]
Fusheng Pan [1 ,2 ]
Shan Jiang [1 ]
Cheng Li [1 ]
Bing Jiang [1 ,2 ]
Xianquan Jiang [1 ]
机构：
[1] Chongqing Academy of Science and Technology
[2] College of Materials Science & Engineering,Chongqing University
来源：
ProgressinNaturalScience:MaterialsInternational | 2013年 / 23卷 / 01期
关键词：
Sr; AZ31 magnesium alloy; Grain refinement mechanism;
D O I：
暂无
中图分类号：
TG146.22 [];
学科分类号：
080502 ;
摘要：
The grain refinement mechanisms of Sr in the AZ31 magnesium alloys were studied by both phase diagram calculation and experimental analysis.The influence of Sr content on the solute distribution coefficients of Al and Zn during solidification was investigated in order to find out whether Sr addition can enhance the grain refinement efficiency brought by Al and Zn.The results showed that Sr addition can promote the segregation in liquid phases for both Al and Zn during solidification,therefore enhance the grain refinement effects by Al and Zn in AZ31 magnesium alloys.And the effect of Sr addition on the solute distribution coefficients for Al is larger than that of Zn.Sr addition can improve the GRF values by itself and also improve the GRF values of Al and Zn to the AZ31 magnesium alloys,and the grains are refined consequently.
引用
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页码：7 / 12
页数：6
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