TY - JOUR
T1 - HEAT-TO-HEAT VARIATION IN FATIGUE STRENGTH OF SCr 420 CARBURIZED STEELS.
AU - Masuda, Chitoshi
AU - Ishii, Akira
AU - Nishijima, Satoshi
AU - Sumiyoshi, Hideshi
AU - Tanaka, Yoshihisa
AU - Kanazawa, Kenji
PY - 1985/4
Y1 - 1985/4
N2 - Fatigue properties and fatigue fracture mechanisms were examined for three heats of SCr 420 carburized steels. Carburizing, quenching and tempering were performed at four different conditions and fatigue strength was evaluated up to 10**8 cycles under rotating bending at room temperature in laboratory air. The heat-to-heat variation of fatigue strength was about twice larger than the variation due to the difference of heat treatment, according to the diversity of the failure modes: failure from the specimens surface, fish-eye failure originated near the case-core interface, or fish-eye failure in the case, and different types of fish-eye origins as non-metallic inclusions, intergranular cracking, or stage I cracking.
AB - Fatigue properties and fatigue fracture mechanisms were examined for three heats of SCr 420 carburized steels. Carburizing, quenching and tempering were performed at four different conditions and fatigue strength was evaluated up to 10**8 cycles under rotating bending at room temperature in laboratory air. The heat-to-heat variation of fatigue strength was about twice larger than the variation due to the difference of heat treatment, according to the diversity of the failure modes: failure from the specimens surface, fish-eye failure originated near the case-core interface, or fish-eye failure in the case, and different types of fish-eye origins as non-metallic inclusions, intergranular cracking, or stage I cracking.
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M3 - Article
AN - SCOPUS:0022046865
SN - 0387-5008
VL - 51
SP - 1193
EP - 1199
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
IS - 464
ER -