Abstract
The heterogeneity of microstructures in heat affect zone of 9Cr-1.5 W heat resistant steel friction stir welding joint was studied, and its influence on the weld creep property was discussed. The inter critical heat affect zone at the advancing side of the weld is found as the most likely area to be failure during creep, owing to the formation of ferrite grains and lath martensite with low carbon content and the coarsening of M23C6 carbides. The as-welded joint exhibits a good creep resistance of 1173.8 h creep rupture time at 600 °C temperature and 200 MPa stress.
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 callDisclaimer: 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.
