Influence of Al on shape memory effect and twinning induced plasticity of Fe-Mn-Si-Al system alloy

被引：32

作者：

Koyama, Motomichi ^{[1
]}

Murakami, Masato

Ogawa, Kazuyuki

Kikuchi, Takehiko

Sawaguchi, Takahiro

机构：

[1] Shibaura Inst Technol, Tokyo 1358548, Japan

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

MATERIALS TRANSACTIONS | 2007年 / 48卷 / 10期

关键词：

shape memory alloy; twinning induced plasticity steel; iron-manganese-silicon-aluminum; ductility; martensitic transformation; twinning;

D O I：

10.2320/matertrans.MRA2007124

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the shape memory effect and ductility of Fe-30Mn-(6-x)Si-xAl (x = 0, 1, 2 and 3; in mass-%) alloys. The alloy with x = 0 shows a good shape memory effect but suffers from poor ductility, while the alloys with x = 2 and 3 are well-known TWIP (twinning induced plasticity) steels that show high ductility. In the present study, it was found that the shape memory effect is observed in the samples with x = 0 and 1, but disappears when x exceeds 2. On the other hand, the ductility almost linearly increases with increasing the amount of Al. A good combination of the shape memory effect and ductility was achieved in the alloy with x = 1.

引用

页码：2729 / 2734

页数：6

共 21 条

[1] Effect of pre-deformation of austenite on shape memory properties in Fe-Mn-Si-based alloys containing Nb and C [J].