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Evaluation of microstructural and corrosion resistance of as-cast Cu45Mn25Al15Fe5Cr5Ni5 high entropy alloy

Article scientifique 2020 Anglais

Résumé

Abstract Cu45Mn25Al15Fe5Cr5Ni5 high entropy alloy was prepared using casting route. Detailed microstructural analysis revealed the formation of dendritic structure in the as-cast sample. The results showed that the dendrite (DR) regions are riched with Cu and Mn, while the inter-dendrite (ID) regions are riched with Cr and Fe. Metallographic investigation was conducted using optical microscope and scanning electron microscope as well. Determination of phase analysis was carried out using x-ray diffraction. Corrosion properties were studied via Auto LAB PGSTAT 302N, supplied with Nova software. The investigated alloy demonstrates superior corrosion resistance with average corrosion rate 0.056 mm year−1.

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Abdelghafar, K., Ibrahim, M., Shoeib, M., Waly, M. (2020). Evaluation of microstructural and corrosion resistance of as-cast Cu45Mn25Al15Fe5Cr5Ni5 high entropy alloy. https://doi.org/10.1088/2053-1591/ab6acb

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Khaled A. Abdelghafar Mervat Ibrahim Madiha Shoeib M.A. Waly

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