Micromechanical modeling of the work-hardening behavior of single- and dual-phase steels under two-stage loading paths

被引：29
|
作者：
Yoshida, Kengo [1 ,2 ]
Brenner, Renald [1 ]
Bacroix, Brigitte [1 ]
Bouvier, Salima [1 ]
机构：
[1] Univ Paris 13, CNRS, LPMTM, F-93430 Villetaneuse, France
[2] Nippon Steel Corp Ltd, Steel Res Labs, Forming Technol R&D Ctr, Chiba 2938511, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 03期
关键词：
Dual-phase steel; Work-hardening behavior; Self-consistent model; Polycrystalline material; MILD-STEEL; POLYCRYSTALS; SHEETS; METALS;
D O I：
10.1016/j.msea.2010.10.078
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Work-hardening behavior of single-phase steel and dual-phase steel which is made of hard martensite surrounded by soft ferrite is analyzed by using an elastoplastic crystal plasticity model in conjunction with the incremental self-consistent model. Two-stage loading paths consisting of uniaxial tension, unloading and subsequent uniaxial tension/compression for various directions are applied. Bauschinger effect and transitional re-yielding behavior, which depends on the direction of the second loading path, are predicted and analyzed with respect to the distribution of the residual resolved shear stresses within the material. These features, which are caused by the inhomogeneity of the residual stress field, are especially pronounced in the case of the dual-phase steel because of the strong mechanical contrast between ferrite and martensite phases. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1037 / 1046
页数：10
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