Enhanced age hardening in an Al-Mg-Si alloy using high-speed compression

被引：0

作者：

Horikawa, Keitaro ^{[1
]}

Kitani, Yuki ^{[2
,3
]}

Ogura, Tomo ^{[4
]}

Hirose, Akio ^{[4
]}

Takahashi, Makoto ^{[5
]}

Kobayashi, Hidetoshi ^{[1
]}

机构：

[1] Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka-shi, Osaka

[2] Graduate School of Engineering Science, Osaka University, Toyonaka-shi, Osaka

[3] Mitsubishi Heavy Industry, Ltd.

[4] Division of Material and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita-shi, Osaka

[5] Joining and Welding Research Institute, Osaka University, Ibaraki-shi, Osaka

来源：

Keikinzoku/Journal of Japan Institute of Light Metals | 2015年 / 65卷 / 10期

关键词：

Age hardening; Aluminum-magnesium-silicon alloy; High-speed deformation; Vacancy cluster;

D O I：

10.2464/jilm.65.498

中图分类号：

学科分类号：

摘要：

The age hardening of an Al-Mg-Si alloy was examined by the effect of high-speed (105 s-1) compression prior to aging. The enhancement of the age hardening is brought about by the formation of vacancy clusters during highspeed compression. High resolution transmission electron microscopy reveals that these vacancy clusters form stacking fault tetrahedra. Following peak aging, vacancy clusters and aging precipitates coexist in the grain interior. The high aging hardness obtained following high-speed compression is most probably due to the combined effects of vacancy and precipitation hardening. © 2015 The Japan Institute of Light Metals.

引用

页码：498 / 502

页数：4

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