Stress-Strain Responses of Multi-Phase CoCrCuMnNi and CoCrMnFeCu Alloys

Abstract:

Stress-strain responses and microstructure of multi-phase CoCrCuMnNi and CoCrMnFeCu alloys in which Fe or Ni was replaced by Cu from Cantor alloy were studied. The deformation mechanisms of CoCrCuMnNi and CoCrMnFeCu were observed to be influenced by the presence of brittle sigma phase and the separated Cu-rich and the matrix phase. CoCrCuMnNi exhibited the relatively lower strength and excellent deformability, while CrMnFeCoCu alloy exhibited higher strength and lower ductility. The higher strength and the lower ductility of CoCrCuMnNi is associated with the presence more frequent and coarser sigma phase than those in CoCrCuMnNi.

• Periodical: Key Engineering Materials (Volume 765)
• Pages: 166-172
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.765.166
• Online since: March 2018
• Authors: You Bin Kang, Seung Min Oh, Kap Ho Lee, Sun Ig Hong*
• Keywords: Compression Test, Cu, Dendrite, High Entropy Alloy, Phase Separation

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