Laser welding applications for low-carbon commercial X80 steel
| Parent link: | AIP Conference Proceedings Vol. 2310, iss. 1 : Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology.— 2020.— [020072, 5 p.] |
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| Summary: | Title screen The study investigates the structure and mechanical properties of laser welded X80 pipeline steel. It is found that the fusion zone has a dendritic martensite structure, and the heat affected zone exhibits ferrite-bainite structures. The fine-grained heat affected zone has a small fraction of granular bainite and regions of degenerate upper bainite consisting of parallel bainitic ferrite laths separated by martensitic-austenitic constituents and twinned martensite plates. The laser welded joint is shown to have the strength and ductility characteristics at the level of the base material. Despite an ?2-fold decrease in the impact toughness KCV of the welded samples in comparison with the base material, the weld material demonstrates high KCV values (KCV–70°C = 170?J/cm2). Режим доступа: по договору с организацией-держателем ресурса |
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2020
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| Online Access: | https://doi.org/10.1063/5.0034193 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664849 |