Enhanced mechanical properties of Mg-Al-Zn cast alloy via friction stir processing

被引：248
作者：
Feng, A. H. [1 ]
Ma, Z. Y. [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
SCRIPTA MATERIALIA | 2007年 / 56卷 / 05期
关键词：
friction stir processing; friction stir welding; magnesium alloy; microstructural modification; property;
D O I：
10.1016/j.scriptamat.2006.10.035
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Mg-Al-Zn casting was subjected to friction stir processing (FSP) and subsequent aging. FSP resulted in significant breakup and dissolution of the coarse, network-like eutectic beta-Mg17Al12 phase distributed at the grain boundaries and remarkable grain refinement, thereby improving significantly the tensile properties of the casting. The FSP Mg-Al-Zn sample exhibited an ultimate tensile strength of 337 MPa and an elongation of 10%. FSP combined with aging is a simple and effective approach to enhance the mechanical properties of Mg-Al-Zn casting. (c)@ 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：397 / 400
页数：4
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