Stepwise transformation behavior of the strain-induced martensitic transformation in a metastable stainless steel

被引：73

作者：

Hedstrom, Peter ^{[1
]}

Lienert, Ulrich

Almer, Jon

Oden, Magnus

机构：

[1] Lulea Univ Technol, Div Engn Mat, SE-97187 Lulea, Sweden

[2] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

SCRIPTA MATERIALIA | 2007年 / 56卷 / 03期

关键词：

stainless steels; strain-induced martensitic transformation; phase transformation kinetics; X-ray diffraction; synchrotron radiation;

D O I：

10.1016/j.scriptamat.2006.10.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In situ high-energy X-ray diffraction during tensile loading has been used to investigate the evolution of lattice strains and the accompanying strain-induced martensitic transformation in cold-rolled sheets of a metastable stainless steel. At high applied strains the transformation to alpha-martensite occurs in stepwise bursts. These stepwise transformation events are correlated with stepwise increased lattice strains and peak broadening in the austenite phase. The stepwise transformation arises from growth of alpha-martensite embryos by autocatalytic transformation. (c) 2006 Acta Materialia, Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：213 / 216

页数：4

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