Abstract
A new SIMA-imitated brazing was used to join Mn-Cu damping alloy and 430 stainless steel (SS) with Cu-34Mn-6Ni-10Sn filler metal. The microstructure and mechanical properties of the brazed joint were investigated. The results show that the semi-solid brazing seam was obtained at 790 °C. A (Fe, Mn, Cr) solid solution diffusion layer was formed between 430SS and brazing seam. The Mn-Fe-Cu-Cr compounds were formed in brazing seam due to the dissolution of 430SS. The liquid phase penetrated along the grain boundaries of Mn-Cu alloy. The shear strength of the brazed joint is 230 MPa, the brazed joint exhibits a ductile fracture feature.
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