Abstract
Friction-stir-welded (FSW) Mg alloys usually exhibit an undesirable combination of strength and ductility compared to the base material, posing disadvantages to practical engineering applications. In this work, low-temperature FSW was applied on a non-combustive Mg-9A1-1Zn-1Ca alloy to modify the microstructure and mechanical properties of the welded joint. Results show that many dislocations, second-phase particles, and {10-12} twins were introduced into ultrafine grains of the welded joint, which could randomize the basal texture intensity and enhance strength throughout the joint, leading to fractures in the base material in the transverse tensile test. The appearance of coherent twin boundaries can efficiently accommodate dislocation, thereby elevating ductility and ultimate tensile strength.
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.
