Quantitative Phase Analysis of a Coating Based on a CrMnFeCoNiCu High-Entropy Alloy

Films of the CrMnFeCoNiCu high-temperature alloy have been deposited onto a steel substrate by vacuum sputtering in the magnetron evaporation mode. The local atomic structure and phase composition are studied. The structural state of the CrMnFeCoNiCu alloy is determined by the superposition of contributions of equiatomic simple cubic lattices with lattice parameters of the P1 space group. Reflexes from the S1 and S2 phases contribute to the integral intensity; the contribution is 65.7 and 28.9%, respectively. The spatial distribution of the atoms obtained by theoretical analysis for the S1 and S2 lattices confirms that the chosen composition is a solid solution and that secondary phases are absent.