Cyclic deformation behavior of ECAP Al-Li-Cu-Mg-Zr alloy

被引：0
|
作者：
Liu, SM [1 ]
Wang, ZG [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2004年 / 40卷 / 03期
关键词：
Al-Li-Cu-Mg-Zr alloy; fatigue; equal-channel angular pressing (ECAP); peak-age;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Equal-channel angular pressed (ECAP) Al-Li-Cu--Mg-Zr alloy mainly consists of near equi-axial grains with size smaller than 1 mum. ECAP Al-Li-Cu-Mg-Zr alloy cyclically softens continuously to failure at higher strain amplitude of Deltaepsilon(p)/2 = 5.5 x 10(-3), but cyclically softens initially and then harden continuously to failure at lower strain amplitudes of Deltaepsilon(p)/2 = 5 x 10(-4) -2.6 x 10(-3). The Coffin-Manson curve of the ECAP Al-Li-Cu-Mg-Zr alloy shows an ideal straight line. All these properties are different from those reported previously for the conventional peak-aged Al-Li-Cu-Mg-Zr alloy.
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页码：225 / 229
页数：5
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