Nanoindentation characteristic of Fe-based bulk metallic glass laser weld

Fe-based bulk metallic glasses are characterized by good magnetic properties, high mechanical strength, and corrosion resistance. Although, despite these properties, their use is limited because of the small sample thickness that could be achieved by rapid solidification. Therefore, one of the most prominent and promising engineering processes which can be used for extending the amorphous materials' application is laser beam welding. In this experiment, amorphous alloy of desired composition was prepared by melting high purity constituents. Fully amorphous plate was achieved by die pressure casting method. Next, the laser welding process was carried out by the use of TruLaser Station 5004. The influence of laser beam on the topography on the parent material, heat affected zone, and fusion zone was investigated. Nanohardness and reduced Young's modulus of particular amorphous material fusion weld zones were examined.