Conclusions
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1.
Carbide films forming in welded joints and manifesting themselves in the form of „bright rings” are secondary structures originating as a result of internal restructuring of the surface layers of the friction pair.
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2.
Friction welding of blanks of steels R6M5 and 45 with the use of the effect of superplasticity of high-speed steel eliminates the formation of „bright rings” at the contact of the welded joints and of a zone of complete decarburization in the structural steel.
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Additional information
Tomsk Polytechnic Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 59–61, June, 1990.
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Khazanov, I.O., Fomin, N.I. Structure and properties of joints of steels R6M5 and 45 obtained by friction welding. Met Sci Heat Treat 32, 461–465 (1990). https://doi.org/10.1007/BF01100170
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DOI: https://doi.org/10.1007/BF01100170