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Microstructure and Fracture of 50Mo-50Re Vacuum Brazed with Fe-Si-B Filler Metal
2019
Materials Research
Microstructural evolution, interfacial reaction and fracture during vacuum brazing of 50Mo-50Re alloys using amorphous alloy Fe-5.6Si-2.6B(wt%) were investigated. A binary intermetallic compound, σ(Mo 2 Re 3 ) formed as parallel contiguous layers in the diffusion zone. In addition, Fe from the braze alloy, in combination with dissolved Mo from the substrate, formed two layers of binary compounds μ-Mo 6 Fe 7 and λ-MoFe 2 , adjacent to diffusion zone. The unreacted Fe-based filler metal
doi:10.1590/1980-5373-mr-2018-0730
fatcat:bpnfflqijfgjhjx4w3cd274deq