TY - JOUR
T1 - Effect of internal hydrogen on very high cycle fatigue of precipitation-strengthened steel SUH660
AU - Wu, Hao
AU - Hamada, Shigeru
AU - Oda, Yasuji
AU - Noguchi, Hiroshi
N1 - Funding Information:
This study was conducted as a part of the “Fundamental Research Project on Advanced Hydrogen Science (2006–2012)” funded by the New Energy and Industrial Technology Development Organization (NEDO).
Publisher Copyright:
© 2014 Elsevier Ltd. All rights reserved.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 2015/1
Y1 - 2015/1
N2 - The fatigue life of SUH660 steel is dominated by crack initiation in the region of very high cycle fatigue owing to the new crack initiation behavior near the tip of temporarily arrested crack. The effect of internal hydrogen on very high cycle fatigue life is investigated focused on crack initiation life via fatigue and Vickers hardness tests. Hydrogen inhibits cracks initiation, and accelerates the increase in crack initiation lives with decreasing stress in low and medium hardness zones. Hydrogen increases the hardness in low and medium hardness zones. Hydrogen extends new crack initiation lives and causes longer very high cycle fatigue life.
AB - The fatigue life of SUH660 steel is dominated by crack initiation in the region of very high cycle fatigue owing to the new crack initiation behavior near the tip of temporarily arrested crack. The effect of internal hydrogen on very high cycle fatigue life is investigated focused on crack initiation life via fatigue and Vickers hardness tests. Hydrogen inhibits cracks initiation, and accelerates the increase in crack initiation lives with decreasing stress in low and medium hardness zones. Hydrogen increases the hardness in low and medium hardness zones. Hydrogen extends new crack initiation lives and causes longer very high cycle fatigue life.
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U2 - 10.1016/j.ijfatigue.2014.07.006
DO - 10.1016/j.ijfatigue.2014.07.006
M3 - Article
AN - SCOPUS:84911882029
SN - 0142-1123
VL - 70
SP - 406
EP - 416
JO - International Journal of Fatigue
JF - International Journal of Fatigue
ER -