Abstract
The influence of the level of defectiveness of design and service origin (grooves and cracks) of a fastener and an impact specimen on the accuracy of determination of the allowable values of the ductile-to-brittle transition temperature is investigated. An evaluation of the allowable ductile-to-brittle transition temperatures making it possible to impose more soundly based requirements for effectiveness of the material in the stages of design, production, and service in relation to the production condition of the steel, the level of defectiveness of the fastener, and the specified operating life of the threaded joint is proposed.
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Standards for Calculation of the Strength of Elements of Reactors, Steam Generators, Vessels, and Piping of Atomic Electric Power Stations and Experimental and Research Nuclear Reactors and Units [in Russian], Metailurgiya, Mosow (1973).
Boiler and Pressure Vessel Code, Sec. III, ASME (1974).
V. I. Gorynin and A. A. Chizhik, “The stress intensity factor for a fastener metric thread,” Probl. Prochn., No. 3, 40–43 (1989).
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Translated from Problemy Prochnosti, No. 5, pp. 35–37, May, 1991.
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Gorynin, V.I. Ductile-to-brittle transition temperature of high-strength steel for fastners of power equipment under pressure. Strength Mater 23, 524–527 (1991). https://doi.org/10.1007/BF00771450
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DOI: https://doi.org/10.1007/BF00771450