Evaluation of microstructural and corrosion resistance of as-cast Cu45Mn25Al15Fe5Cr5Ni5 high entropy alloy
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.
- Publication:
-
Materials Research Express
- Pub Date:
- January 2020
- DOI:
- 10.1088/2053-1591/ab6acb
- Bibcode:
- 2020MRE.....7a6579A
- Keywords:
-
- high entropy alloys;
- microstructure;
- corrosion resistance;
- polarization