Abstract
The effect of adhesive layer was studied during variable polarity plasma arc weld bonding (VP-PAWB) process of magnesium alloy. During the welding process, arc behavior and temperature field on the upper surface of the specimens around arc were observed. In addition, microstructures of the welding joint were analyzed. Variable polarity plasma arc welding (VP-PAW) process was also conducted for comparison. Results revealed that the arc shape was concentrated as a result of the decomposition of the adhesive in alternating current electrode positive (ACEP) stage of VP-PAWB process. In addition, in VP-PAWB, the adhesive replacement of the air layer in VP-PAW made the thermal conductive rate and cooling rate increase. Besides, the adhesive decomposition escape upwards agitated the melt pool. As a result, the grains were refined.
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.
