Microstructural Evolution during Partial Remelting of Al-Si Alloys Containing Different Amounts of Magnesium

被引：26
|
作者：
Abedi, A. [1 ]
Shahmiri, M. [2 ]
Esgandari, B. Amir [2 ]
Nami, B. [1 ]
机构：
[1] Shahid Rajaee Teacher Training Univ, Dept Mech Engn, Tehran, Iran
[2] Iran Univ Sci & Technol, Sch Met & Mat Sci, Tehran, Iran
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2013年 / 29卷 / 10期
关键词：
Al-Si alloys; Magnesium; Microstructure; Semi-solid processing; Coarsening;
D O I：
10.1016/j.jmst.2013.04.021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of magnesium on the microstructures of A356 aluminum alloy in as-cast and semi-solid conditions was investigated. The result showed that magnesium refined the size of primary alpha(Al) phase and eutectic silicon. Magnesium also modified considerably the eutectic silicon and decreased the size of globular alpha(Al) solid phase in the semi-solid processed alloy. Coarsening rate of the solid alpha(Al) phase during partial remelting at semi-solid temperature decreased by adding magnesium, probably due to the decrease of both the solid-liquid interfacial energy and inter-diffusion coefficient of solute atoms.
引用
收藏
页码：971 / 978
页数：8
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