“…Therefore, efforts to solve the size limit problem have been performed through various joining processes like friction welding, pulse-current welding, electron-beam welding and spark welding. There has been reported that some studies had succeeded in joining of similar and dissimilar BMG rods [1][2][3][4][5]. In this study, the similar and dissimilar friction welding of tubular Zr-based BMGs to BMG alloys and crystalline metals (Al-alloy) have been tried and compared with the cases of BMG rods [5,6].…”