TY - JOUR
T1 - Fe-N 二元フェライト鋼における疲労挙動：炭素と窒素の類似点と相違点
AU - Habib, Kishan
AU - Koyama, Motomichi
AU - Sakurada, Eisaku
AU - Yoshimura, Nobuyuki
AU - Yokoi, Tatsuo
AU - Ushioda, Kohsaku
AU - Tsuzaki, Kaneaki
AU - Noguchi, Hiroshi
N1 - Publisher Copyright:
Copyright © 2020 The Iron and Steel Institute of Japan
PY - 2020/6
Y1 - 2020/6
N2 - Fatigue crack initiation and propagation behavior of a water-quenched fully ferritic nitrogen steel were investigated by means of tension-compression fatigue tests. The Fe-0.011 mass% N steel showed no serrated flow associated with dynamic strain aging, and showed a fatigue limit of 150 MPa alongside a non-propagating fatigue crack. The major mode of crack initiation was at the grain boundaries, and the cracks propagated along the grain boundaries and interiors at and above the fatigue limit. The Fe-N steel did not exhibit a significant level of coaxing effect. The results were compared with our previous findings in Fe-0.006 and 0.017C steels, and the similarity and difference were discussed.
AB - Fatigue crack initiation and propagation behavior of a water-quenched fully ferritic nitrogen steel were investigated by means of tension-compression fatigue tests. The Fe-0.011 mass% N steel showed no serrated flow associated with dynamic strain aging, and showed a fatigue limit of 150 MPa alongside a non-propagating fatigue crack. The major mode of crack initiation was at the grain boundaries, and the cracks propagated along the grain boundaries and interiors at and above the fatigue limit. The Fe-N steel did not exhibit a significant level of coaxing effect. The results were compared with our previous findings in Fe-0.006 and 0.017C steels, and the similarity and difference were discussed.
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U2 - 10.2355/tetsutohagane.TETSU-2019-051
DO - 10.2355/tetsutohagane.TETSU-2019-051
M3 - Article
AN - SCOPUS:85086227048
VL - 106
SP - 123
EP - 129
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
SN - 0021-1575
IS - 6
ER -