Conclusions
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1.
Heat treatment of bimetals with a cladding layer of steel Kh18N10T and holding at elevated temperature lead to diffusion of carbon into the cladding layer, the effect increasing with less alloying of the base metal.
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2.
The carburized zone in the two-layer steel induced by carbon diffusion lowers the ductility, which must be taken into account in welding, heat treatment, and operation of apparatus manufactured from two-layer steels.
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Additional information
Irkutsk Scientific-Research Institute of Chemical Machine Construction. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 25–27, November, 1975.
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Chernykh, N.P., Arsen'ev, V.I., Turitsina, A.P. et al. Effect of carbon diffusion during tempering and heating in operation on the mechanical properties of two-layer steels. Met Sci Heat Treat 17, 930–932 (1975). https://doi.org/10.1007/BF00679381
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DOI: https://doi.org/10.1007/BF00679381