The Effect of Ce and Pre-deformed Process on Aging Transformation for Al-Li-Cu-Zr Alloy

被引：0

作者：

Jia, Liansuo ^{[1
]}

Wei, Yinghui ^{[1
]}

Hu, Lanqing ^{[1
]}

Xu, Bingshe ^{[1
]}

机构：

[1] School of Materials and Science, Taiyuan Univ. of Sci. and Technology, Taiyuan 030024, China

来源：

Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | 2002年 / 31卷 / 02期

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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 T1 phase and make precipitation homogeneous and fine especially in peak aging process, but not in δ prime transformation. The pre-deformation leads to the increase of dislocation density in alloys and the decrease of nucleation work, consequently, prompts T1 phase to precipitate. Better properties can be acquired by commonly matched by using Ce (0.04%-0.14%) and pre-deformation (3%-9%).

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页码：158 / 159