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- Title
Effect of Heat Treatment on the Phase Composition of Copper-Zinc Coating on Steels.
- Authors
Arkhipov, V. E.; Murav'eva, T. I.; Moskvitin, G. V.; Pugachev, M. S.; Shcherbakova, O. O.
- Abstract
The structure of a copper–zinc coating deposited onto steel 40Kh at 450°C by the method of gas-dynamic spraying of a mechanical mixture of copper, zinc and corundum particles with 2-mm displacement of the sprayer nozzle is studied. The coated specimens are heat treated in a furnace at 420 – 430°C for at most 180 min. The structure and the chemical composition of the coating are studied by the methods of x-ray diffraction phase analysis and microscopic spectrum analysis. It is shown that the spraying is accompanied by diffusion of copper into zinc, which yields an electron-type solid solution based on Cu5Zn8 (a γ-phase). After the heat treatment at 420 – 430°C for 180 min the coating contains a solid solution of zinc in copper (an α-phase) and an electron-type solid solution based on CuZn (a γ′-phase). The chemical and phase compositions of the coating correspond to duplex brass L65.
- Subjects
PROTECTIVE coatings; HEAT treatment; CHEMICAL structure; COPPER; SOLID solutions; COPPER-zinc alloys
- Publication
Metal Science & Heat Treatment, 2023, Vol 65, Issue 7/8, p395
- ISSN
0026-0673
- Publication type
Article
- DOI
10.1007/s11041-023-00945-8