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Effect of Heat Treatment on the Phase Composition of Copper-Zinc Coating on Steels

  • THERMOCHEMICAL TREATMENT AND COATINGS
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Metal Science and Heat Treatment Aims and scope

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.

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Notes

  1. Here and below in the article the contents of the elements and of the phases is given in mass percent.

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The work has been performed with partial support of a state assignment (No. 123021700050-1, Microscope Researches).

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Authors and Affiliations

  1. A. A. Blagonravov Institute of Engineering Science of the Russian Academy of Sciences, Moscow, Russia

    V. E. Arkhipov, T. I. Murav’eva, G. V. Moskvitin, M. S. Pugachev & O. O. Shcherbakova

  2. A. Yu. Ishlinskii Institute for Mechanics Problems of the Russian Academy of Sciences, Moscow, Russia

    V. E. Arkhipov, T. I. Murav’eva, G. V. Moskvitin, M. S. Pugachev & O. O. Shcherbakova

Authors
  1. V. E. Arkhipov
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  2. T. I. Murav’eva
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  3. G. V. Moskvitin
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  4. M. S. Pugachev
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  5. O. O. Shcherbakova
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Corresponding author

Correspondence to M. S. Pugachev.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 3 – 7, July, 2023.

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Arkhipov, V.E., Murav’eva, T.I., Moskvitin, G.V. et al. Effect of Heat Treatment on the Phase Composition of Copper-Zinc Coating on Steels. Met Sci Heat Treat 65, 395–399 (2023). https://doi.org/10.1007/s11041-023-00945-8

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  • DOI: https://doi.org/10.1007/s11041-023-00945-8

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