Conclusion
Low-alloy cold-resistant steel 10GNB is developed for the construction of ships and floating drill rigs. The optimal heat-treatment regime for the steel is refinement.
In studying the commercially produced steel, it is established that its optimal structure is a tempered martensitic-bainitic mixture with uniformly distributed particles of disperse special niobium carbides NbC.
In terms of corrosion resistance, the developed steel corresponds to the requirements set forth for shipbuilding steels.
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Literature cited
S. A. Alatortseva and Yu. I. Legostaev, "Cold-resistant low-alloy steel for shipbuilding", Sudostroenie, No. 11, 36–41 (1983).
Inventor's Certificate No. 885324, MKI S 22 S 38/16, Steel.
Additional information
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 60–62, November, 1987.
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Legostaev, Y.L., Karchevskaya, N.I. & Kharchevnikov, V.P. Cold-Resistant nickel-alloys steel. Met Sci Heat Treat 29, 877–881 (1987). https://doi.org/10.1007/BF00707764
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DOI: https://doi.org/10.1007/BF00707764