The effects of Cu addition on the microstructure and thermal stability of an Al-Mg-Si alloy

被引：87
作者：
Man, Jin [1 ]
Jing, Li [1 ]
Jie, Shao Guang [1 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 437卷 / 1-2期
关键词：
aluminum alloys; precipitation; microstructure; transmission electron microscopy;
D O I：
10.1016/j.jallcom.2006.07.113
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of Cu addition on the microstructure and thermal stability of 6082 Al-Mg-Si alloys were investigated. The results show the Q ' precipitates are formed when aged at 170 degrees C for 4 h in 6082 alloy with 0.6% Cu addition. The hardness value of the alloy with 0.6% Cu is always distinctly higher than that of the alloy without Cu during isothermal treatment at 250 degrees C. Based on the TEM and three-dimensional atom probe (3DAP) results, the thermal stability of the 6082 alloys with Cu addition is discussed with respect to the distribution of Cu. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：146 / 150
页数：5
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