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Study of the Effect of Seawater on the Microhardness of the Surface Layer of Carbon Steels Subjected to Combined EMP+SPD Hardening Treatment

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Chemical and Petroleum Engineering Aims and scope

The corrosion behavior of the surface white layer of various grades of steels subjected to combined hardening by electromechanical processing and final surface plastic deformation (EMP+SPD) is investigated. The characteristic features of the distribution of microhardness in the hardened surface of steels 40X, 55, 60C2A following exposure in a model solution of sea salt are considered. It was found that the microhardness of the surface hardened EMP+SPD steel samples depends on the content of carbon and alloying elements of the parent metal. The corrosion resistance of the surface layer of samples made of steel 40X and steel 55, strengthened by EMP+SPD, is 2–3 times higher than that of samples made of steel 60S2A. It was found that alloying steel with silicon in a concentration of 1.6–2% worsens the corrosion resistance of the white layer, while alloying with chromium 0.8–1.1% retains resistance to seawater for 1440 hours.

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Authors and Affiliations

  1. Volgograd State Technical University, Volgograd, Russia

    N. G. Dudkinа & V. V. Barinov

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  1. N. G. Dudkinа
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  2. V. V. Barinov
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Correspondence to N. G. Dudkinа.

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Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 57, No. 12, pp. 36−39, December, 2021.

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Dudkinа, N.G., Barinov, V.V. Study of the Effect of Seawater on the Microhardness of the Surface Layer of Carbon Steels Subjected to Combined EMP+SPD Hardening Treatment. Chem Petrol Eng 57, 1043–1048 (2022). https://doi.org/10.1007/s10556-022-01044-w

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  • DOI: https://doi.org/10.1007/s10556-022-01044-w

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