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  • Fine Structure and Fracture...
    Kryukov, R. E.; Gromov, V. E.; Ivanov, Yu. F.; Kozyrev, N. A.; Rubannikova, Yu. A.

    Russian physics journal, 06/2022, Volume: 65, Issue: 2
    Journal Article

    Using the methods of modern physical materials science, the structural phase state, the defect substructure and the fracture surface of low-carbon alloy steel welds formed with and without carbon-containing additionы are studied. A quantitative analysis of the structure and dislocation substructure parameters of the weld metal is performed. The contributions from the scalar and excess dislocation density to the weld metal strength are estimated. It is noted that for a weld formed without any carbon-containing addition the level of internal stress fields is higher, which may result in the material embrittlement.