Abstract
ABSTRACT The microstructure and mechanical properties of joints made of alloy 6082-T6 obtained by friction stir welding (FST) are investigated. Welded joints have a pronounced heterogeneity in microstructure and mechanical properties. The asymmetry of the maximum temperature fields and microhardness in the zone of thermal influence (ZTI) is indicated. The joint strength of the FST average 72% of the strength of the base metal. The plasticity of welded joints is lower than the base metal by 5.3 times, because of the high deformation concentration in the minimum hardness zone. The prolonged residence of the ZTI metal in the high-temperature region leads to the dissolution process of the β” hardening particles, and, as a consequence, to a significant decrease in the hardness of the ZTI. The dependence of the alloy 6082 yield strength on hardness, which makes it possible to estimate the level of local mechanical properties in a welded joint is received.
Sign-in/Register to access full text options 
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.
