The effects of thermomechanical training treatment on the deformation characteristics of Fe-Mn-Si-Al alloys

被引：46

作者：

Koyama, Motomichi ^{[1
]}

Sawaguchi, Takahiro ^{[2
]}

Ogawa, Kazuyuki ^{[2
]}

Kikuchi, Takehiko ^{[2
]}

Murakami, Masato ^{[1
]}

机构：

[1] Shibaura Inst Technol, Dept Mat Engn, Tokyo 1358548, Japan

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

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 497卷 / 1-2期

基金：

日本学术振兴会;

关键词：

Fe-Mn-Si; Deformation twin; Martensitic transformation; Twinning-induced plasticity; Shape memory effect; Training;

D O I：

10.1016/j.msea.2008.07.026

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have studied the effects of the thermomechanical training treatment on the deformation mode for Fe-30Mn-(6-x)Si-xAl (x = 0, 1, 2 and 3 mass%) alloys, which exhibit complicated deformation processes due to coexistence of the stress-induced fcc to hcp martensitic transformation and the mechanical twinning of the fcc matrix in addition to slip deformation. The stress-strain curves at each training cycle were analyzed for the alloys, and the deformation microstructures were observed with atomic force microscopy on a Fe-30Mn-5Si-1Al alloy before and after the training treatment. It was found that the deformation mode shifts from the mechanical twinning to the stress-induced martensitic transformation, as the training proceeds. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：353 / 357

页数：5

共 15 条

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