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Structure formation in the joining zone of steels upon contact fusion welding

  • Structure, Phase Transformations, and Diffusion
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Abstract

A mechanism of the structural and phase transformations in the contact zone upon the production of permanent joints during fusion welding of ferritic-pearlitic steels, which lead to the formation of a light band (LB) with a “silvery” stitched line in the middle, is proposed. It is shown that this effect is based on the phenomenon of local contact melting of cementite that had no time to be dissolved during the rapid heating (104 K/s) at the boundary with the adjacent high-carbon inhomogeneous austenite. This mechanism is proposed as an alternative to those suggested earlier in the last more than fifty years by some domestic and foreign researchers.

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Authors and Affiliations

  1. Kurdjumov Institute of Metal Physics, National Academy of Sciences of Ukraine, bul’v. Acad. Vernadskogo 36, Kiev, 03680, Ukraine

    S. P. Oshkaderov

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  1. S. P. Oshkaderov
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Original Russian Text © S.P. Oshkaderov, 2010, published in Fizika Metallov i Metallovedenie, 2010, Vol. 110, No. 6, pp. 583–589.

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Oshkaderov, S.P. Structure formation in the joining zone of steels upon contact fusion welding. Phys. Metals Metallogr. 110, 557–563 (2010). https://doi.org/10.1134/S0031918X10120069

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