Open AccessHigh-entropy ZrTiCrNiCu coating
Author(s) -
V.М. Yurov,
С.А. Гученко,
V. I. Goncharenko,
В. С. Олешко
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2064/1/012080
Subject(s) - materials science , indentation hardness , coating , annealing (glass) , alloy , metallurgy , entropy (arrow of time) , friction coefficient , high entropy alloys , sputter deposition , composite material , thermodynamics , microstructure , sputtering , thin film , nanotechnology , physics
A magnetron target made of a high-entropy ZrTiCrNiCu alloy was synthesized by mechanical alloying methods followed by annealing in a vacuum furnace. Using this target, coatings were applied to steel samples with a thickness of 7-10 microns. After thermal annealing, the coatings were nanostructured. In terms of microhardness, the ZrTiCrNiCu coating is not inferior to, and in most cases exceeds the hardness of high-entropy equiatomic alloys. A high entropy coating has a low coefficient of friction. They turn out to be anti-friction, which, most likely, leads to energy savings. In this work, the surface energy, contact potential difference and work function of electrons for high-entropy coatings were determined for the first time.