期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 480, 期 2, 页码 L25-L28出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2009.02.044
关键词
Metals; Casting; X-ray diffraction; Partial remelting
资金
- National Natural Science Foundation of China [50501010]
- Special Fund for the Author of Excellent PhD Thesis of Colleges and Universities in China [20071338]
- Innovation Foundation for Graduate Student [20080101]
- Project 985-Automotive Engineering of Jilin University
The microstructural evolution behavior of Mg-5Si-1Al alloys modified with Sr-Sb during isothermal heat treatment was investigated in the present study. Although the morphology of eutectic Mg2Si phase varied with isothermal holding temperature increasing from 620 to 670 degrees C, no spheridization occurred for primary Mg2Si polyhedrons in Sr-Sb-modified alloy even when the temperature reaches 660 or 670 degrees C. Such an abnormal phenomenon of primary Mg2Si, during partial remelting isothermal treatment, might be ascribed to both the spheridization restriction effect caused by incorporation of Sb in Mg2Si and stability of octahedral primary Mg2Si crystals faced by {111} planes. (C) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据