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A thermodynamic study of corrosion behaviors for CoCrFeNi-based high-entropy alloys

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Abstract

To better understand the corrosion behaviors of CoCrFeNi-based high-entropy alloys (HEAs), the CALculation of PHAse Diagrams (CALPHAD) method was used to simulate the Pourbaix diagrams for CoCrFeNi, CoCrFeNiCu and CoCrFeNiAl HEAs. Although the CALPHAD simulations were performed under equilibrium conditions, assisted by published experimental results on CoCrFeNi, CoCrFeNiCu and CoCrFeNiAl0.5 HEAs, the CALPHAD simulations provide insights into the corrosion behaviors, such as the oxidation layer pitting and forming potential, of the CoCrFeNi-based HEAs.

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Acknowledgements

The current work is funded by the NSF EPSCoR CIMM Project under Award #OIA-1541079.

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Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA

    Boliang Zhang, Yi Zhang & S. M. Guo

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  1. Boliang Zhang
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  2. Yi Zhang
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  3. S. M. Guo
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Correspondence to Boliang Zhang.

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Zhang, B., Zhang, Y. & Guo, S.M. A thermodynamic study of corrosion behaviors for CoCrFeNi-based high-entropy alloys. J Mater Sci 53, 14729–14738 (2018). https://doi.org/10.1007/s10853-018-2652-2

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  • DOI: https://doi.org/10.1007/s10853-018-2652-2

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