TY - CHAP
T1 - Effect of Phase Transformation on Damage-induced Magnetization of 304 Austenitic Stainless Steel
AU - Li, Hongmei
AU - Zhang, Dongli
AU - Cai, Wenlu
AU - Li, Yong
AU - Chen, Zhenmao
AU - Uchimoto, Tetsuya
AU - Takagi, Toshiyuki
AU - Yoshihara, Kensuke
PY - 2016
Y1 - 2016
N2 - Effect of phase transformation on damage-induced magnetization of 304 austenitic stainless steel is experimentally studied in this paper. Firstly, relationship between plastic deformation and the deformation-induced phase transformation of 304 austenitic steel is investigated. Then, compositions and distributions of phases in the 304 austenitic steel specimens are observed by an X-ray diffractometer and a magnetic force microscopy, respectively. Finally, relationship between the damage-induced magnetization and the deformation-induced ferromagnetic phase for the 304 austenitic steel is summarized. It is found that 1) the ferromagnetic α'-martensite phase increases systematically with the plastic deformation and distributes mainly at the in-grain slip lines. 2) the intensity of damage-induced magnetization depends linearly on the amount of ferromagnetic phase for 304 austenitic steel. It is also clarified that the reason why the damage-induced magnetization increases with plastic strain in the 304 steel is due to the increasing amount of ferromagnetic phase caused by plastic deformation.
AB - Effect of phase transformation on damage-induced magnetization of 304 austenitic stainless steel is experimentally studied in this paper. Firstly, relationship between plastic deformation and the deformation-induced phase transformation of 304 austenitic steel is investigated. Then, compositions and distributions of phases in the 304 austenitic steel specimens are observed by an X-ray diffractometer and a magnetic force microscopy, respectively. Finally, relationship between the damage-induced magnetization and the deformation-induced ferromagnetic phase for the 304 austenitic steel is summarized. It is found that 1) the ferromagnetic α'-martensite phase increases systematically with the plastic deformation and distributes mainly at the in-grain slip lines. 2) the intensity of damage-induced magnetization depends linearly on the amount of ferromagnetic phase for 304 austenitic steel. It is also clarified that the reason why the damage-induced magnetization increases with plastic strain in the 304 steel is due to the increasing amount of ferromagnetic phase caused by plastic deformation.
KW - 304 austenitic steel
KW - Damage-induced magnetization
KW - phase transformation
UR - http://www.scopus.com/inward/record.url?scp=84975463183&partnerID=8YFLogxK
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U2 - 10.3233/978-1-61499-639-2-187
DO - 10.3233/978-1-61499-639-2-187
M3 - Chapter
AN - SCOPUS:84975463183
T3 - Studies in Applied Electromagnetics and Mechanics
SP - 187
EP - 194
BT - Electromagnetic Nondestructive Evaluation (XIX)
A2 - Uchimoto, Tetsuya
A2 - Kikuchi, Hiroaki
A2 - Yusa, Noritaka
PB - IOS Press
ER -