Abstract
In this paper, an ultrafine-grained (UFG) Al–0.2 wt% Sc sheet was fabricated by accumulative roll bonding and welded by applying friction stir welding (FSW) process. Additionally, welding process parameters were optimized using Taguchi optimization technique. Microstructural and textural characterizations were performed by scanning electron microscope equipped with electron backscattered diffraction. Analysis of variance and Taguchi results demonstrated that tool rotational speed had the highest statistical influence (P = 60.08%) on mechanical properties. Confirmation test as was performed to verify the optimum FSW parameters also showed that the error between the estimated value of the maximum hardness and its experimental value was 1.99%. As a result, FSW was demonstrated to be highly beneficial for the retention of the UFG microstructure as well as high mechanical properties in the ARB-processed specimen. The orientation distribution function (ODF) results were in good agreement with the generated strain during the FSW process. The microstructural and textural (ODF) results showed that a well-recrystallized equi-axed grain structure having a combination of the $$ B/\bar{B} $$ and C simple-shear textures was finally developed in the stir zone of the optimized welding specimen.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.