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材料工程  2007 

Mg-4Al-2Si合金固溶处理过程中Mg2Si相颗粒的球状化

, PP. 34-37

Keywords: Mg-4Al-2Si合金,固溶处理,Mg2Si颗粒球化

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Abstract:

实验研究了Mg-4Al-2Si合金固溶处理过程中汉字状Mg2Si相颗粒的球化现象及其工艺参数对球化的影响。结果发现Si沿Mg/Mg2Si界面扩散,使粗大的汉字状Mg2Si颗粒发生部分溶断,并依靠自发球化的趋势通过向未溶的粒状Mg2Si扩散聚集完成球化;最佳球化工艺为420℃保温16h。

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