Relaxation mechanism of rotational type in fracture of weld joints for austenic steels |
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| Authors: | VE Panin VS Pleshanov SA Kobzeva SP Burkova |
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| Institution: | Institute of Strength Physics and Materials Science, Siberian Branch of Russian Academy of Sciences, pr. Akademicheskii 2/1, Tomsk 634021, Russian Federation |
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| Abstract: | Studied is the mesoscale behavior of plastic deformation and fracture of weld joints for austenic steels. Large-scale rotational modes of deformation in heat affected zones are identified with the first stage of formation of band structures; it is related to the “traveling neck” phenomenon in the base metal. The second stage is connected with crack generation and the state of affairs in the heart-affected zone. |
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| Keywords: | Mesomechanics Weld joints Austentic steels Heat-affected zone (HAZ) Localized plastic deformation Mesoscale fragmentation |
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