Characterization of strengthening precipitate phases in a Mg-Zn alloy

被引：343
|
作者：
Gao, X. [1 ]
Nie, J. F. [1 ]
机构：
[1] Monash Univ, Dept Mat Engn, ARC Ctr Excellence Design Light Met, Clayton, Vic 3800, Australia
来源：
SCRIPTA MATERIALIA | 2007年 / 56卷 / 08期
基金：
澳大利亚研究理事会;
关键词：
magnesium alloys; Mg-Zn alloys; precipitation; microstructure;
D O I：
10.1016/j.scriptamat.2007.01.006
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Strengthening precipitate phases in a Mg-8 wt.% Zri alloy, aged isothermally at 200 degrees C, have been characterized using transmission electron microscopy and electron microdiffraction. Precipitation at 200 degrees C involves formation of beta(1)' and beta(2)' transition phases. Contrary to previous studies, the P, phase is found to have a monoclinic structure similar to that of Mg4Zn7. The beta(2)' phase is confirmed to have a hexagonal structure similar to that of MgZn2. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：645 / 648
页数：4
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