Microstructure of Cross Wedge Rolled 6061 Aluminum Alloy

Zhao Peifeng1; Song Kexing1; Guo Xiuhua1; Ren Guangsheng2; Shen Zhi2; Xu Chunguo2

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Microstructure of Cross Wedge Rolled 6061 Aluminum Alloy
Issue 6, Pages: 414-416(2008)
Published： 2008 ，
DOI：

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[1]赵培峰,宋克兴,国秀花,任广升,沈智,徐春国.6061铝合金楔横轧塑性成形显微组织分析[J].特种铸造及有色合金,2008(06):414-416+405.

Zhao Peifeng1, Song Kexing1, Guo Xiuhua1, et al. Microstructure of Cross Wedge Rolled 6061 Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys (6):414-416(2008)
[1]赵培峰,宋克兴,国秀花,任广升,沈智,徐春国.6061铝合金楔横轧塑性成形显微组织分析[J].特种铸造及有色合金,2008(06):414-416+405. DOI：

Zhao Peifeng1, Song Kexing1, Guo Xiuhua1, et al. Microstructure of Cross Wedge Rolled 6061 Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys (6):414-416(2008) DOI：

摘要

通过对6061铝合金试样的显微组织分析可知

在楔横轧变形过程中

6061铝合金的软化机制为动态回复

其平均应变速率的大小应在1～10s-1之间。通过对试样透射电镜的分析并结合各变形条件下的应变速率

确定了亚晶直径d与Zener-Hollomon参数z之间的关系

可用d-1=-2.7955+0.0664lnz和z=εexp（276 800/RT）来表达。

Abstract

The microstructure of cross wedge rolled 6061 aluminum alloy was observed.The results indicate that the soft mechanism of the 6061 aluminum alloy exhibits dynamic recovery and the average strain rate is in range of 1

0 s-1 in the process of cross wedge rolling.The relationship between meta-crystalline size and z parameters is determined by SEM analysis combining with strain rate at different strains

providing a reference to forming aluminum alloy.