In situ and ex situ neutron diffraction study on deformation behavior of high-nitrogen, Ni-free duplex stainless steel

被引：19
|
作者：
Lee, Tae-Ho [1 ]
Ha, Heon-Young [1 ]
Kang, Jun-Yun [1 ]
Hwang, Byoungchul [1 ]
Woo, Wanchuk [2 ]
Shin, Eunjoo [2 ]
机构：
[1] Korea Inst Mat Sci, Adv Metall Mat Div, Ferrous Alloy Dept, Chang Won 641831, South Korea
[2] Korea Atom Energy Res Inst, Neutron Phys Dept, Taejon 305600, South Korea
来源：
SCRIPTA MATERIALIA | 2012年 / 67卷 / 02期
关键词：
Stainless steels; Nitrogen; Neutron diffraction; Twinning; Stacking fault energy; TENSILE DEFORMATION; FRACTURE; ALLOYS;
D O I：
10.1016/j.scriptamat.2012.03.043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In situ and ex situ neutron diffraction were used to investigate the deformation behavior of high-nitrogen, nickel-free duplex stainless steel. During in situ deformation, both ferrite and austenite deformed plastically to the same degree. The stacking fault energy of austenite was evaluated to be 36.2 mJ m(-2) from ex situ neutron profiles, which correlated well with the observed deformation microstructure of twin formation. A significant decrease in the effective particle size of austenite was due to the formation of deformation twins. (C) 2012 Ada Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：141 / 144
页数：4
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