Laser welding applications for low-carbon commercial X80 steel; AIP Conference Proceedings; Vol. 2310, iss. 1 : Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology

Laser welding applications for low-carbon commercial X80 steel; AIP Conference Proceedings; Vol. 2310, iss. 1 : Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 2310, iss. 1 : Physical Mesomechanics. Materials with Multilevel Hierarchical Structure and Intelligent Manufacturing Technology.— 2020.— [020072, 5 p.]
Main Author: Derevyagina L. S. Lyudmila Sergeevna
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Other Authors: Gordienko A. I. Antonina Ildarovna, Orishich A. M. Anatoliy
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
Language:English
Published: 2020
Subjects:
электронный ресурс
труды учёных ТПУ
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

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