TY - JOUR
T1 - Fatigue behavior in an Fe-N binary ferritic steel
T2 - Similarity and difference between carbon and nitrogen
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:
© 2019 ISIJ.
PY - 2019/1
Y1 - 2019/1
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/isijinternational.ISIJINT-2018-535
DO - 10.2355/isijinternational.ISIJINT-2018-535
M3 - Article
AN - SCOPUS:85060727753
SN - 0915-1559
VL - 59
SP - 186
EP - 191
JO - Transactions of the Iron and Steel Institute of Japan
JF - Transactions of the Iron and Steel Institute of Japan
ER -