Influence of Al content on the strain-hardening behavior of aged low density Fe-Mn-Al-C steels with high Al content

被引：92
|
作者：
Wu, Z. Q. [1 ,2 ]
Ding, H. [1 ]
An, X. H. [2 ]
Han, D. [1 ]
Liao, X. Z. [2 ]
机构：
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110819, Peoples R China
[2] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2015年 / 639卷
基金：
澳大利亚研究理事会;
关键词：
Fe-Mn-Al-C steels; kappa-carbide; Strain hardening rate; Planar slip; Deformation mechanism; GRAIN-BOUNDARY PRECIPITATION; MECHANICAL-PROPERTIES; INDUCED PLASTICITY; SINGLE-CRYSTALS; HIGH-STRENGTH; KAPPA-PHASE; ALLOYS; DUCTILITY; MICROSTRUCTURE; ORIGIN;
D O I：
10.1016/j.msea.2015.05.002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The influence of Al content on the microstructure, deformation behavior and strain hardening rate of aged high strength low density Fe-Mn-Al-C steels was investigated. Increasing the Al content in the steels increases the volume fraction of shearable nanocrystalline coherent kappa-carbide precipitates. This results in strengthening the strain softening effect on glide planes and a decreased density of slip bands, leading to significant decrease of the strain hardening rate. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：187 / 191
页数：5
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