Elastoplastic properties of duplex steel determined using neutron diffraction and self-consistent model

被引：70
作者：
Baczmanski, A
Braham, C
机构：
[1] Univ Sci & Technol, AGH, Fac Phys & Nucl Tech, PL-30059 Krakow, Poland
[2] Ecole Natl Super Arts & Metiers, CNRS UMR 8006, F-75013 Paris, France
来源：
ACTA MATERIALIA | 2004年 / 52卷 / 05期
关键词：
neutron diffraction; elastoplastic self-consistent model; duplex steel;
D O I：
10.1016/j.actamat.2003.10.046
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new method for determining the parameters characterising elastoplastic deformation of two-phase material is proposed. The method is based on the results of neutron diffraction and mechanical experiments, which are analysed using the self-consistent rate-independent model of elastoplastic deformation. The neutron diffraction method has been applied to determine the lattice strains and diffraction peak broadening in two-phase austeno-ferritic steel during uniaxial tensile test. The elastoplastic model was used to predict evolution of internal stresses and critical resolved shear stresses. Calculations based on this model were successfully compared with experimental results and the parameters characterising elastoplastic deformation were determined for both phases of duplex steel. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：1133 / 1142
页数：10
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