Effect of grain size on fatigue cracking at twin boundaries in a CoCrFeMnNi high-entropy alloy

• Published in: Journal of materials science & technology Vol. 39; pp. 1 - 6
• Main Authors: Wang, A.G., An, X.H., Gu, J., Wang, X.G., Li, L.L., Li, W.L., Song, M., Duan, Q.Q., Zhang, Z.F., Liao, X.Z.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 15.02.2020
• Subjects: Fatigue cracking; Grain size; High-entropy alloy; Slip band; Twin boundary; Grain size; Slip band; Twin boundary; Fatigue cracking; High-entropy alloy

The fatigue cracking behavior at twin boundaries (TBs) in a CoCrFeMnNi high-entropy alloy with three different grain sizes was systematically investigated under low-cycle fatigue. Irrespective of grain size, the change from slip band cracking to TB cracking occurred with increasing the difference in...