| The friction welding of a Cu-based bulk metallic glass (BMG) to similar and dissimilar BMGs was tried. An apparatus which can precisely control friction time and pressure was devised. The influences of welding condition on the shape and volume of the protrusion formed from the welded interface were investigated. Through the precise control of friction time and friction pressure, a successful joining at the welded interface could be accomplished in both the similar Cu45Zr45Ag5Al5/Cu45Zr45Ag5Al5 BMG alloy and the dissimilar Cu45Zr45Ag5Al5/Zr55Al10Ni5Cu30 BMG combinations without crystallization. The friction welding of Cu45Zr45Ag5Al5 BMG to the crystalline materials of Ti-4V-6Al alloy was also tried. |
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