2023 №03 (06) DOI of Article
2023 №03 (02)

Automatic Welding 2023 #03
Avtomaticheskaya Svarka (Automatic Welding), #3, 2023, pp. 5-9

Influence of the nature of distribution of non-metallic inclusions on the mechanical properties of weld metal of low-alloy steels

V.V. Holovko1, O.O. Shtofel1, D.Yu. Korolenko2

1E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua
2National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute». 37 Peremohy Ave., 03056, Kyiv, Ukraine

A complex of works was carried out on establishing the nature of distribution of non-metallic inclusions in the structure of metal of low-alloy welds. As a result of metallographic examinations, the values of the volume content of inclusions in the structure and their distribution by sizes were established. The rationality of using such an additional indicator as the distribution density for a more informative description of non-metallic inclusions when evaluating their influence on the mechanical properties of weld metal was shown. The use of fractal analysis to reveal the features of the distribution density of non-metallic inclusions in the weld metal was proposed. 6 Ref., 4 Fig.
Keywords: welds, microstructure, non-metallic inclusions, distribution density, tendency to brittle fracture, fractal analysis

Received: 06.03.2023


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