Aluminum element effect for electron beam welding of similar and dissimilar magnesium-aluminum-zinc alloys

被引：38
|
作者：
Chi, Chao-Ting [1 ]
Chao, Chuen-Guang
Liu, Tzeng-Feng
Lee, Chuan-Hua
机构：
[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Chung Shan Inst Sci & Technol, Syst Mfg Ctr, Taipei, Taiwan
来源：
SCRIPTA MATERIALIA | 2007年 / 56卷 / 09期
关键词：
aluminum; electron beam welding; magnesium alloys; precipitation;
D O I：
10.1016/j.scriptamat.2007.01.028
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Defects causing stress concentration from electron beam welding are related to the Al content of the Mg-AI-Zn weldment and its effect will be most conspicuous for the welding of dissimilar metals. Precipitates which are gamma phase (Mg-17(Al,Zn)(12)) also influence the formative mechanism of pores, the heat-affected zone and the fracture mode of the weld. More noteworthy is that the Al content of 6.0 wt.% is a very important delimitation for these mechanisms. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：733 / 736
页数：4
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