Effects of Si and Ag additions on ageing behaviour and microstructure evolution of Al-Cu-Mg alloy

被引：0

作者：

Wang, Shi-Yong ^{[1
]}

Chen, Zhi-Guo ^{[1
]}

Li, Shi-Chen ^{[1
]}

Yang, Wen-Ling ^{[1
]}

Zheng, Zi-Qiao ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Central South University, Changsha 410083, China

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2009年 / 19卷 / 11期

关键词：

Microstructure - Monte Carlo methods - Silicon - Age hardening - High resolution transmission electron microscopy - Intelligent systems - Magnesium alloys - Silver alloys - Binary alloys - Copper alloys - Ternary alloys;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effects of trace additions of Si and Ag on the ageing behaviour and microstructure evolution of low Cu/Mg ratio Al-Cu-Mg alloy were investigated by using analytical transmission electron microscopy and Monte Carlo simulation. The results indicate that the age hardening response can be enhanced by the trace Si addition as well as Ag. The Monte Carlo simulation results show that the addition of Si results in a refinement of Mg clusters and Cu-Mg clusters, and the addition of Ag promotes the formation of lots of Mg-Ag clusters. Trace Si and Ag additions significantly alter the clustering process during early stages of ageing, resulting in different microstructural evolution processes during subsequent aging process.

引用

页码：1902 / 1907