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A cobalt-rich eutectic high-entropy alloy in the system Al–Co–Cr–Fe–Ni

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Abstract

By using the well-established CALPHAD methodology, a cobalt-rich eutectic high-entropy alloy is designed and made for the system Al–Co–Cr–Fe–Ni. Microstructural studies show that the designed alloy has a dual FCC/BCC phase structure and is composed of nanostructured lamellar-irregular regions. The mechanical properties of the alloy are investigated by compression test. The ultimate strength and the ductility of the alloy are measured to be 2150 MPa and 40%, respectively. The effect of Al concentration on the microstructure and mechanical properties of the alloy is investigated.

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  1. Metallurgy Group, Niroo Research Institute (NRI), Tehran, 14665-517, Iran

    Ali Shafiei & Samin Rajabi

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  1. Ali Shafiei
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Shafiei, A., Rajabi, S. A cobalt-rich eutectic high-entropy alloy in the system Al–Co–Cr–Fe–Ni. Appl. Phys. A 125, 783 (2019). https://doi.org/10.1007/s00339-019-3084-9

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