Prediction of the strain Hardening of TRIP/TWIP steels considering C contents

被引：2
|
作者：
Dan, WenJiao [1 ]
Zhang, WeiGang [1 ]
Huang, TingTing [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch NAOCE, Dept Engn Mech, Shanghai 200240, Peoples R China
来源：
18TH INTERNATIONAL CONFERENCE ON METAL FORMING 2020 | 2020年 / 50卷
基金：
中国国家自然科学基金;
关键词：
Strain Hardening; TRIP/TWIP Steels; SFE; C Contents; MECHANICAL-PROPERTIES; MANGANESE CONTENT; TRANSFORMATION;
D O I：
10.1016/j.promfg.2020.08.097
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, a micromechanical model controlled by Stacking Fault Energy (SFE) is developed based on the shear band theory and the similarities between deformation twinning and martensitic transformation. The effects of C contents on the strain hardening behaviours of material are investigated base on the results of the proposed model and the experiments. The mechanism of material composition influencing the strain hardening behaviors of material can be drawn: material composition is revealed to be the dominant factor determining the values of SFE. In addition, the generations of deformation twinning and martensitic transformation are controlled by SFE. Due to the complex coupling between dislocation slip, deformation twinning and martensitic transformation, the material composition determines the mechanical behaviours of TWIP/TRIP steels by influencing the nucleation of deformation twinning and martensitic transformation. (C) 2020 The Authors. Published by Elsevier B.V.
引用
收藏
页码：541 / 545
页数：5
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