TY - JOUR
T1 - Notch shape dependence of fatigue crack extension in equiatomic CrMnFeCoNi high-entropy alloy
AU - Suzuki, Kai
AU - Hamada, Shigeru
AU - Koyama, Motomichi
AU - Tsuzaki, Kaneaki
AU - Noguchi, Hiroshi
N1 - Funding Information:
This work was financially supported by JSPS KAKENHI (JP16H06365 and JP17H04956).
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/12
Y1 - 2021/12
N2 - Fatigue tests were conducted on an equiatomic CrMnFeCoNi high-entropy alloy with three different micro-stress concentration sources. A fatigue crack behavior analysis using a replica of a specimen surface, fractographic analysis in a fracture surface, fatigue crack shape analysis, and strain analysis under the fracture surface were performed. It was found that the fatigue crack extension mode was transited by the severity of the strain concentration from the damage accumulation mode to the plastic deformation mode.
AB - Fatigue tests were conducted on an equiatomic CrMnFeCoNi high-entropy alloy with three different micro-stress concentration sources. A fatigue crack behavior analysis using a replica of a specimen surface, fractographic analysis in a fracture surface, fatigue crack shape analysis, and strain analysis under the fracture surface were performed. It was found that the fatigue crack extension mode was transited by the severity of the strain concentration from the damage accumulation mode to the plastic deformation mode.
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U2 - 10.1016/j.ijfatigue.2021.106481
DO - 10.1016/j.ijfatigue.2021.106481
M3 - Article
AN - SCOPUS:85113618799
VL - 153
JO - International Journal of Fatigue
JF - International Journal of Fatigue
SN - 0142-1123
M1 - 106481
ER -