Effects of Sb Addition on Heat-treated Microstructure and Mechanical Properties of AZ61-0.7Si Magnesium Alloy
In this paper, the effects of Sb addition on heat-treated microstructure and mechanical properties of AZ61-0.TSi magnesium alloy were investigated.The results indicate that the solution heat treatment can modify the Chinese script shaped Mg2Si phase in the AZ61-0.7Si alloy.After solutionized at 420℃, the morphology of the Mg2Si phase in the AZ61-0.TSi alloy changes from the Chinese script shape to the short pole and block shapes, and the higher modification efficiency could be obtained for the alloy with the addition of 0.4 wt.%Sb.In addition, the effect of the solution heat treatment on the morphology of the Mg2Si phase can also result in the improvement of tensile and creep properties for the AZ61-0.7Si alloy.After solutionized at 420℃ for 24h and followed by aging treatment at 200℃ for 12h, the AZ61-0.7Si alloy exhibits higher tensile and creep properties than that of the as-cast alloy, and the properties improvement resulted from heat treatment, is more obvious for the AZ61-0.7Si alloy with the addition of 0.4 wt.%Sb.
Mg-Al-Si based alloy AZ61-0.7Si alloy solution heat treatment Mg2Si phase Sb
Ming-bo Yang Hong-liang Li Ren-ju Cheng Hong-jun Hu
Materials Science and Engineering College,Chongqing University of Technology,Chongqing 400054,China Chongqing Academy of Science and Technology,Chongqing 401123,China
国际会议
the 3nd International Conference on Digital Manufacturing & Automation (第三届数字制造与自动化国际会议(ICDMA 2012))
桂林
英文
1306-1310
2012-08-01（万方平台首次上网日期，不代表论文的发表时间）