Welding and Characterization of Bulk Metallic Glasses Welds

Abstract

The main aim of this work is to present the structure and topography of the Fe37.44Co34.56B19.2Si4.8Nb4 laser weld. A laser welding has been applied to increase the capability of using these materials in the industry. The amorphous and amorphous-crystalline phase were confirmed by X-ray analysis, atomic force microscopy, and high resolution transmission electron microscopy tests. The detailed topographic analysis revealed that the heat affected zone show a roughness characteristic of the crystalline phase and a smooth surface in the fusion zone.

Influence of laser pulse on solidification of molten pool during laser welding of dissimilar Ti-based amorphous alloys

“…However, there are still difficulties in manufacturing of amorphous parts with large size or complex structure, due to limitations in the industrial preparation of raw amorphous alloys [3,11,12]. Thus, laser welding turns out to be one of the most prospective methods to solve this problem [13][14][15].…”

Influence of Laser Pulse Welding Power on Welding Joints of Zr‐Based Amorphous Alloys

“…Research on laser welding of amorphous alloys has mainly focused on reducing crystallization and the detection of crystallization composition. [13,14] Wirginia et al [15] used die casting to obtain Fe-based amorphous alloy plates with specific compositions and conducted laser welding experiments on the plates. The hardness and mechanical properties of the fusion zone (FZ) were similar to those of metallic glass and no crystallization phenomenon was observed.…”