金属ガラスと結晶金属のレーザ溶接

抄録

Although metallic glass has excellent properties such as strength and corrosion resistance, it has been considered difficult to weld because it is a non-equilibrium material. In this study laser butt welding of Zr55Al10Ni5Cu30 metallic glass and Aluminum was performed. The results showed that the Zr55Al10Ni5Cu30 metallic glass and Al were welded producing burrs. The voids formed at the joint interface were discharged outside the joint with the burrs. A crystal phase with a thickness of about 200 μm was observed on the Zr55Al10Ni5Cu30 metallic glass side along the bonding interface.