抄録
BMGs have been successfully welded together and to some crystalline metals by supercooled liquid phase welding using friction method. The successful friction welding was due to the thermal stability and superplasticity of the supercooled liquid of the BMGs. The supercooled liquid was discharged from the interface and formed a protrusion by the superplastic deformation. The supercooled liquid easily achieved full contact of the interface on the atomic scale, resulting from the superplastic viscous flow through atomic movements. The discharge of the oxide film in the interface accompanied the formation of the protrusion, resulting in metallurgical bonding through the freshened surfaces. Given the possibility of welding BMGs, one can expect that the BMGs will make further progress in diverse applications.
