Effect of melt pulse electric current and thermal treatment on A356 alloy

被引：0
|
作者：
He, Shu-Xian [1 ,2 ]
Wang, Jun [1 ]
Jiang, Wan [2 ]
Sun, Bao-De [1 ]
Zhou, Yao-He [1 ]
机构：
[1] Sch. of Mat. Sci. and Eng., Shanghai Jiaotong Univ., Shanghai 200030, China
[2] Lab. of High Performance Ceramics, Shanghai Inst. of Ceramics, Chinese Acad. of Sci., Shanghai 200050, China
来源：
Transactions of Nonferrous Metals Society of China (English Edition) | 2003年 / 13卷 / 01期
关键词：
Electric currents - Heat treatment - Liquid metals - Mechanical properties - Metallographic microstructure - Solidification;
D O I：
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中图分类号：
学科分类号：
摘要：
Effects of the melt pulse electric current and thermal treatment on solidification structures of A356 alloy were investigated. In the experiments, the low temperature melt(953 K and 903 K) treated by pulse electric current was mixed with high temperature melt(223 K). By the control experiments, the results show that the solidification structure of A356 alloy is refined apparently by the pulse electric current together with melt thermal treatment process, and the mechanical properties, especially the elongation ratio of the specimen treated is improved greatly. The structure change of the melt by pulse electric current and melt thermal treatment is the main reason for the refinement of the solidification structure of A356 alloy.
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页码：126 / 130
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