Evolution of the mechanical properties of aluminum containing Al8Fe2Si precipitates during equal channel angular pressing

被引：15

作者：

Korchef, A

Njah, N

Masmoudi, J

Kolsi, A

Champion, Y

Guérin, S

Leroux, C

机构：

[1] Fac Sci Sfax, Lab Mat Inorgan, Sfax 3018, Tunisia

[2] CNRS, Ctr Etud Chim Met, F-94407 Vitry Sur Seine, France

来源：

ADVANCED ENGINEERING MATERIALS | 2004年 / 6卷 / 08期

关键词：

D O I：

10.1002/adem.200400081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical behaviour of submicrometer grain sized aluminium (99.1%), containing a low volume fraction of Al8Fe2Si precipitates, processed by Equal Channel Angular (EGA) pressing was investigated using Vickers microhardness, compression and tensile tests. In compression, samples machined along three orthogonal directions exhibited different yield strengths and cylindrical samples became elliptic after pressing. Tensile results showed an increase of the yield strength without loss of ductility. After EGA pressing for one pass, annealing at 200°C leads to a significant strengthening. A dependence of the ductility with strain rate was also observed.

引用

页码：639 / 643

页数：5

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