TY - JOUR
T1 - Local deformation energy and void formation behavior in 16%Cr ferritic steel
AU - Furukimi, Osamu
AU - Niigaki, Sho
AU - Yamada, Naoya
AU - Aramaki, Masatoshi
AU - Oue, Satoshi
AU - Funakawa, Yoshimasa
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - Tensile tests of 16mass%Cr bearing ferritic steels were performed in order to investigate the effect of the mean interparticle spacing (λ) on the local deformation energy. λ of Cr precipitates was changed from 3. 3 to 5. 1 μm. The amounts of Cr precipitates in the specimens tested were controlled to be the same level. The local deformation energy was increased with increasing λ in the specimens without a notch, while the local deformation energy does not depend on λ for the notched specimens. AsB (Angle selective Backscattered Electron Detector) images of voids beneath the fracture surface showed that the difference of the local deformation energy dependence on λ between notchless and notched specimens was due to the void coalescence processes. This finding reveals that the local deformation energy is influenced by the stress triaxiality through the void coalescence behavior.
AB - Tensile tests of 16mass%Cr bearing ferritic steels were performed in order to investigate the effect of the mean interparticle spacing (λ) on the local deformation energy. λ of Cr precipitates was changed from 3. 3 to 5. 1 μm. The amounts of Cr precipitates in the specimens tested were controlled to be the same level. The local deformation energy was increased with increasing λ in the specimens without a notch, while the local deformation energy does not depend on λ for the notched specimens. AsB (Angle selective Backscattered Electron Detector) images of voids beneath the fracture surface showed that the difference of the local deformation energy dependence on λ between notchless and notched specimens was due to the void coalescence processes. This finding reveals that the local deformation energy is influenced by the stress triaxiality through the void coalescence behavior.
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U2 - 10.2355/tetsutohagane.99.60
DO - 10.2355/tetsutohagane.99.60
M3 - Article
AN - SCOPUS:84873817207
SN - 0021-1575
VL - 99
SP - 60
EP - 69
JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
IS - 1
ER -