Publisher : The Korea Academia-Industrial cooperation Society
DOI : 10.5762/KAIS.2015.16.9.5743
Title & Authors
Failure Behavior of Laser Cladding Layer used by Fe-based Bulk Metallic Glass Lim, Byung-Chul; Kim, Dae-Hwan; Park, Sang-Heup;
In this study, Fe-based bulk amorphous alloy powder manufactured using gas atomization fabrication was used for laser welding. the fracture behavior of welding layer were analyzed. Tensile test results show that the destruction occurred immediately after the elastic deformation, After plastic deformation of the substrate, the destruction occurred. The actual maximum tensile strength of the welding layer and the substrate are 959.9MPa and 220.4MPa. welding layer were each and to the substrate and the actual microhardness, The welding layer has very high hardness. The welding layer showed a very weak fine acicular structure. The base material was shown in the micro structure appear a coarse grain. SEM observations of the fracture after the tensile test. Fracture morphology of the base metal and the welding layer showed ductile fracture and brittle fracture, respectively.