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Structure and mechanical characteristics of preliminarily deformed welded joints of the 40KKhNM alloy

  • Physical Metallurgy and Heat Treatment
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Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

The results of investigating the structural state and the variation in mechanical characteristics during the static and cyclic loading of deformed welded joints of the 40KKhNM alloy are presented. It is shown that quenching eliminates structural-and-mechanical nonuniformity. The formation of ɛ martensite can introduce an essential contribution to alloy hardening because of the development of the γ → ɛ transformation during tensile static deformation. It is established that the fatigue characteristics vary insignificantly depending on the degree of preliminary deformation. Production modes that provide the maximal fatigue strength with a minimal accumulation intensity of cyclic damages of welded joints are determined.

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Authors and Affiliations

  1. Nizhni Novgorod State Technical University, ul. Minina 24, Nizhni Novgorod, 603950, Russia

    A. N. Gushchin

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  1. A. N. Gushchin
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Correspondence to A. N. Gushchin.

Additional information

Original Russian Text © A.N. Gushchin, 2012, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2012, No. 4, pp. 48–53.

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Gushchin, A.N. Structure and mechanical characteristics of preliminarily deformed welded joints of the 40KKhNM alloy. Russ. J. Non-ferrous Metals 54, 56–61 (2013). https://doi.org/10.3103/S1067821213010070

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  • DOI: https://doi.org/10.3103/S1067821213010070

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