Abstract
The heat-affected zone between the layers of a weld metal is a sensitive and important component of girth welds in X80 pipelines. However, only a few studies have focused on the interlayer heat-affected zone (IHAZ). In this work, thermal simulation was conducted to investigate the relationship between IHAZ microstructure and properties. Results showed that the toughness of the weld metal improved after a single welding thermal cycle but decreased after double welding thermal cycles, particularly when the weld metal was subjected to unaltered coarse grains of IHAZ. The relationship between the microstructure and properties of IHAZ was established to present the correlation of toughness with granular bainite content, grain size, and high-angle grain boundary content.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Progress in Natural Science: Materials International
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
