Abstract
In order to meet the special requirements of aerospace industry for materials of aluminum alloy, the precisely controlled heat treatment was studied. The 2219 aluminum alloy welded plate was prepared by friction stir welding, and its microstructure and mechanical properties were studied correspondingly. The reasons for strength reduction of welded joints are analyzed and summarized. The research results showed that the average tensile strength of the welded joints increased to 393 Mpa and the elongation increased to 12.6% of the base metal. With the special recrystallization technology of high temperature oscillation heat treatment, the fine grains can be maintained, the plasticity of aluminum alloy can be restored, which means that the softening problem can be eliminated and the mechanical strength can be improved.
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 callMore From: IOP Conference Series: Materials Science and Engineering
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.
