TY - JOUR
T1 - Effect of strain rates on strength of sheet steels
AU - Takagi, Shusaku
AU - Miura, Kazuya
AU - Furukimi, Osamu
AU - Obara, Takashi
AU - Kato, Toshiyuki
AU - Tanimura, Shinji
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1997
Y1 - 1997
N2 - Stain rate sensitivity of deformation behavior in various sheet steels were investigated in order to find out the suitable steel for automotive anti-crash parts. Dual phase steels consisted of ferrite and martensite phases absorbed higher energy at strain rate of 2×103/s with lower yield strength at strain rate of 2×10-2/s, compared with other steels. Higher energy absorption of dual phase steels was due to high strain rate sensitivity of yield strength and n-value. Increase of volume fraction or large surface area of martensite phase in dual phase steel led higher strain rate sensitivity in work hardenability as well as yield strength.
AB - Stain rate sensitivity of deformation behavior in various sheet steels were investigated in order to find out the suitable steel for automotive anti-crash parts. Dual phase steels consisted of ferrite and martensite phases absorbed higher energy at strain rate of 2×103/s with lower yield strength at strain rate of 2×10-2/s, compared with other steels. Higher energy absorption of dual phase steels was due to high strain rate sensitivity of yield strength and n-value. Increase of volume fraction or large surface area of martensite phase in dual phase steel led higher strain rate sensitivity in work hardenability as well as yield strength.
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U2 - 10.2355/tetsutohagane1955.83.11_748
DO - 10.2355/tetsutohagane1955.83.11_748
M3 - Article
AN - SCOPUS:0037818800
SN - 0021-1575
VL - 83
SP - 60
EP - 65
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 - 11
ER -