Effect of grain refinement on the mechanical and shape memory properties of Cu-Al-Mn base alloys

被引：23

作者：

Sutou, Y ^{[1
]}

Omori, T ^{[1
]}

Okamoto, T ^{[1
]}

Kainuma, R ^{[1
]}

Ishida, K ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL DE PHYSIQUE IV | 2001年 / 11卷 / PR8期

关键词：

D O I：

10.1051/jp4:2001832

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of grain refinement on the mechanical and shape memory (SM) properties of the beta phase Cu-Al-Mn alloys with L2(1) structure were investigated by optical microscopy, scanning electron microscopy, differential scanning calorimetry and tensile-testing. Additions of V or Cr to the Cu-Al-Mn ternary alloy in amounts over 0.5at.%V or lat.%Cr were effective in refining the beta phase grain sizes to less than 200mum. The M-s temperature decreased with increasing V or Cr content, obeying the Hall-Petch type relation with the beta-grain size. The mechanical properties were improved, but the SM and pseudoelastic properties were not improved by grain refinement.

引用

页码：185 / 190

页数：6

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