Effect of kinematic stability of initial orientation on deformation heterogeneity and ductile failure in duplex stainless steel during uniaxial tension

被引：26
作者：
Jeong, C. U. [1 ]
Woo, W. [2 ]
Choi, J. Y. [3 ]
Choi, S-H [1 ]
机构：
[1] Sunchon Natl Univ, Dept Printed Elect Engn, Sunchon 540950, Jeonnam, South Korea
[2] Korea Atom Energy Res Inst, Div Neutron Sci, Taejon 305535, South Korea
[3] POSCO Tech Res Labs, Pohang 790785, South Korea
来源：
ACTA MATERIALIA | 2014年 / 67卷
关键词：
Neutron diffraction; Duplex stainless steel; Lattice strain; Crystal plasticity; Kinematic stability; NEUTRON-DIFFRACTION; TEXTURE EVOLUTION; RATE SENSITIVITY; FCC METALS; STRESS; TRIP; TRANSFORMATION; MARTENSITE; SIMULATION; DEPENDENCE;
D O I：
10.1016/j.actamat.2013.12.020
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystal plasticity finite element method (CPFEM) was used to investigate the effect of the kinematic stability of the initial orientations on the deformation heterogeneity and ductile failure of ferrite and austenite phases in duplex stainless steel (DSS) during uniaxial tension. The individual stress strain relationships of ferrite and austenite phases in DSS were evaluated via in situ neutron diffraction in combination with the CPFEM. A CPFEM based on the volume elements (VEs) of a unit cell of DSS with a regular banded microstructure demonstrated that the kinematic stability of the initial orientations significantly affected the deformation heterogeneity and ductile failure in the constituent phases in VEs during uniaxial tension. The regions susceptible to ductile failure were identified as being in the austenite phase near the phase boundaries of ferrite and austenite. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：21 / 31
页数：11
相关论文
共 38 条
[1]  
[Anonymous], 2008, ABAQUS US MAN VERS 6
[2]   OVERVIEW .42. TEXTURE DEVELOPMENT AND STRAIN-HARDENING IN RATE DEPENDENT POLYCRYSTALS [J].
ASARO, RJ ;
NEEDLEMAN, A .
ACTA METALLURGICA, 1985, 33 (06) :923-953
[3]   Elastoplastic properties of duplex steel determined using neutron diffraction and self-consistent model [J].
Baczmanski, A ;
Braham, C .
ACTA MATERIALIA, 2004, 52 (05) :1133-1142
[4]   Texture development during the torsion testing of alpha-iron and two IF steels [J].
Baczynski, J ;
Jonas, JJ .
ACTA MATERIALIA, 1996, 44 (11) :4273-4288
[5]   On the stress dependence of partial dislocation separation and deformation microstructure in austenitic stainless steels [J].
Byun, TS .
ACTA MATERIALIA, 2003, 51 (11) :3063-3071
[6]   Effects of nitrogen content on TRIP of Fe-20Cr-5Mn-xN duplex stainless steel [J].
Choi, Jeom Yong ;
Ji, Jung Hoon ;
Hwang, Si Woo ;
Park, Kyung-Tae .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 534 :673-680
[7]   TRIP aided deformation of a near-Ni-free, Mn-N bearing duplex stainless steel [J].
Choi, Jeom Yong ;
Ji, Jung Hoon ;
Hwang, Si Woo ;
Park, Kyung-Tae .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 535 :32-39
[8]   Strain induced martensitic transformation of Fe-20Cr-5Mn-0.2Ni duplex stainless steel during cold rolling: Effects of nitrogen addition [J].
Choi, Jeom Yong ;
Ji, Jung Hoon ;
Hwang, Si Woo ;
Park, Kyung-Tae .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (18) :6012-6019
[9]   The effect of crystallographic orientation on the micromechanical deformation and failure behaviors of DP980 steel during uniaxial tension [J].
Choi, S. -H. ;
Kim, E. -Y. ;
Woo, W. ;
Han, S. H. ;
Kwak, J. H. .
INTERNATIONAL JOURNAL OF PLASTICITY, 2013, 45 :85-102
[10]   Simulation of orientation gradients in a ferrite matrix containing hard martensite under plane-strain flange deformation [J].
Choi, S. -H. ;
Han, S. H. ;
Chin, K. G. .
ACTA MATERIALIA, 2009, 57 (06) :1947-1958
1234