Microstructure and Fracture of 50Mo-50Re Vacuum Brazed with Fe-Si-B Filler Metal

Chunzhi Xia, Yang Li, Yongyong Gong, Lei Wu, Peng Liu, Yajiang Li
<span title="">2019</span> <i title="FapUNIFESP (SciELO)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/qgv3bsbwovhkxfxo77qnpzazti" style="color: black;">Materials Research</a> </i> &nbsp;
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
more &raquo; ... as α-Fe solid solution. Fracture analysis showed that the mode of failure was mainly transgranular cleavage with partly intergranular and the fracture located on the interface of 50Mo-50Re alloy and the central area of brazing seam.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1590/1980-5373-mr-2018-0730">doi:10.1590/1980-5373-mr-2018-0730</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/bpnfflqijfgjhjx4w3cd274deq">fatcat:bpnfflqijfgjhjx4w3cd274deq</a> </span>
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