A welded joint from steels 32G2 and 40KhN obtained by rotary friction welding and a monolithic sample of steel 32G2 are studied. The welded joint is subjected to tensile testing with detection of the strain fields by digital image correlation. The strain distribution is analyzed at various time moments. It is shown that strain localization in the joint of unlike steels in the stage of pre-failure occurs in the thermomechanically affected zone of steel 32G2; the joint has an enough margin of strength and ductility commensurable with that of the base 32G2 metal.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 52 – 58, July, 2022.
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Priymak, E.Y., Stepanchukova, A.V., Atamashkin, A.S. et al. Tensile Deformation Behavior of Rotary Friction Welded Joint of Steels 32G2 and 40KhN. Met Sci Heat Treat 64, 403–409 (2022). https://doi.org/10.1007/s11041-022-00821-x
- rotary friction welding
- welded joint
- tensile test
- method of correlation of digital images