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Effect of Superequilibrium Concentrations of Nitrogen on the Structure and Properties of Steels after Gas Thermobaric Treatment in Compressed Nitrogen

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Metal Science and Heat Treatment Aims and scope

The possibility of creation of high-nitrogen steels and alloys with superequilibrium concentrations of nitrogen and principally novel and high properties by the method of gas thermobaric treatment (GTBT) in compressed molecular nitrogen is considered. The process of GTBT in compressed nitrogen is shown to be efficient for low-alloy structural steels, tool steels, steels with specific physical properties and hard alloys. It also shown that nitrogen layers with a thickness of about 2 mm can be formed on the surface of semiproducts from low-alloy steels in several hours. The technology is ecologically safe and economically efficient.

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Notes

  1. A superequilibrium content is understood as that exceeding the equilibrium concentration of nitrogen attained in the given alloy at the atmospheric pressure of molecular nitrogen.

  2. Here and below in the paper the content of the alloying elements is given in mass percent if not mentioned specially.

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Authors and Affiliations

  1. I. P. Bardin Central Research Institute for Ferrous Metallurgy (FGUP “TSNIIchermet”), Moscow, Russia

    G. S. Belousov & A. V. Belousov

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  1. G. S. Belousov
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  2. A. V. Belousov
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Correspondence to G. S. Belousov.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 10, pp. 46 – 51, October, 2021.

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Belousov, G.S., Belousov, A.V. Effect of Superequilibrium Concentrations of Nitrogen on the Structure and Properties of Steels after Gas Thermobaric Treatment in Compressed Nitrogen. Met Sci Heat Treat 63, 564–569 (2022). https://doi.org/10.1007/s11041-022-00729-6

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  • DOI: https://doi.org/10.1007/s11041-022-00729-6

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