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Features of Laser Welding Light Constructions from Cryogenic Austenitic Steel 316L
摘要： The publication describes the results of the research of the influence of laser welding mode parameters on geometry and quality of the formation of the welded joint of 316L steel with thickness of 1 mm. According to the results of research in the framework of pre-project works, in order to test the technology at the real objects, components of light metal structures were welded.
关键词： metal with thin thickness,light construction,austenitic steel 316L,laser welding
更新于2025-09-16 10:30:52
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Nd: YAG Pulsed Laser Dissimilar Welding of UNS S32750 Duplex with 316L Austenitic Stainless Steel
摘要： Duplex stainless steels (DSSs), a particular category of stainless steels, are employed in all kinds of industrial applications where excellent corrosion resistance and high strength are necessary. These good properties are provided by their biphasic microstructure, consisting of ferrite and austenite in almost equal volume fractions of phases. In the present work, Nd: YAG pulsed laser dissimilar welding of UNS S32750 super duplex stainless steel (SDSS) with 316L austenitic stainless steel (ASS), with di?erent heat inputs, was investigated. The results showed that the fusion zone microstructure observed consisted of a ferrite matrix with grain boundary austenite (GBA), Widmanst?tten austenite (WA) and intragranular austenite (IA), with the same proportion of ferrite and austenite phases. Changes in the heat input (between 45, 90 and 120 J/mm) did not signi?cantly a?ect the ferrite/austenite phase balance and the microhardness in the fusion zone.
关键词： Nd: YAG,microstructure,austenitic steel,microhardness,laser welding,dissimilar material,duplex steel
更新于2025-09-11 14:15:04