Enhanced Age Hardening in an Al-Mg-Si Alloy Using High-Speed Compression

被引：2
|
作者：
Horikawa, Keitaro [1 ]
Kitani, Yuki [1 ]
Ogura, Tomo [2 ]
Hirose, Akio [2 ]
Takahashi, Makoto [3 ]
Kobayashi, Hidetoshi [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Dept Mech Sci & Bioengn, Toyonaka, Osaka 5608531, Japan
[2] Osaka Univ, Grad Sch Engn, Div Mat & Mfg Sci, Suita, Osaka 5650871, Japan
[3] Osaka Univ, Joining & Welding Res Inst, Ibaraki 5670047, Japan
来源：
MATERIALS TRANSACTIONS | 2015年 / 56卷 / 07期
关键词：
aluminum-magnesium-silicon alloy; vacancy cluster; high-speed deformation; age hardening; PLASTIC-DEFORMATION; CLUSTERS; ALUMINUM;
D O I：
10.2320/matertrans.L-M2015810
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The age hardening of an Al-Mg-Si alloy was enhanced by the effect of high-speed (10(5) s(-1)) compression prior to aging. This enhancement of the age hardening is brought about by the formation of vacancy clusters during high-speed 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.
引用
收藏
页码：1058 / 1062
页数：5
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