The effect of Ce and pre-deformed process on aging transformation for Al-Li-Cu-Zr alloy

被引：0

作者：

Jia, LS ^{[1
]}

Wei, YH ^{[1
]}

Hu, LQ ^{[1
]}

Xu, BS ^{[1
]}

机构：

[1] Taiyuan Univ Sci & Technol, Sch Mat & Sci, Taiyuan 030024, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2002年 / 31卷 / 02期

关键词：

Al-Li-Cu-Zr alloy; pre-deformed process; phase transformation; rare earth element;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of rare earth element Ce and pre-deformation transformation on aging transformation for the 2090 Al-Li alloys have been investigated. It is found that the trace Ce element (0.11%) can obviously disperse T-1 phase and make precipitation homogeneous and fine especially in peak aging process, but not in delta' trans formation. The pre-deformation leads to the increase of dislocation density in alloys and the decrease of nucleation work, consequently, prompts T-1 phase to precipitate. Better properties can be acquired by commonly matched by using Ce (0.04%similar to0.14%)and pre-deformation(3%-9%).

引用

页码：156 / 159

页数：4

共 6 条

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