Vacuum brazing of dissimilar tubular component of AA2219 and AISI 304 by a low melting Al-18Ag-20Cu-5Si-0.2Zn braze alloy

Srinivas, V.; Singh, A.K.; Krishna, V. Gopala; Reddy, G. Madhusudhan

doi:10.1016/j.jmatprotec.2017.09.005

Cited by 19 publications

(2 citation statements)

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“…The сhange of iron concetration in γ-phase: in the brazing ller metal (1), after spreading over Kovar (2) and in the brazed seam (3) at application of Cu-Mn-4.5Co-25Fe brazing ller metal Figure 7 The brazed joint: general view (а); microstructure of Cu-Mn-4.5Co-5Fe brazed seam (b, c) Figure 8 The results of brazed seam mapping: electron image of seam microstructure (а); beam re ection of: iron (b); cobalt (c); copper (d); chromium (e); manganese (f)…”

Section: Declarations Figuresmentioning

confidence: 99%

“…Modern engineering solutions increasingly require joining dissimilar materials in developing new components and parts characterized by speci c service properties [1][2]. Producing such components promotes the realization of the advantages of each of the materials, lowering nancial costs during their manufacturing and preserving their functional characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Influence of iron on the structure and strength of the Kovar to stainless steel joints by using Cu–Mn–Co–Fe brazing filler metal

Maksymova,

Kovalchuk,

Voronov

2023

Weld World

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The paper presents the results of X-ray spectral microanalysis of dissimilar brazed joints between Kovar and stainless steel, produced by vacuum brazing with the application of Cu-Mn-Co-Fe brazing ller metals. X-ray microspectral analysis established that a two-phase structure is formed in brazed joints, which consist of two solid solutions: the primary phase is the α-Cu solid solution (based on the Cu-Mn system), which takes up the main zone of the seam. The γ-phase (Fe-Mn) crystallizes in the form of isolated discrete grains. It also contains other components of the brazing ller metal. The in uence of iron on the structure and mechanical properties of the brazed joints was investigated. It was found that an increase in iron concentration leads to an increase in the quantity of the γ-phase. It was determined that increasing the iron concentration in the initial brazing ller metal from 1% to 2.5% results in the attainment of maximum strength (600 MPa) in the brazed joints, and the samples fail through the stainless steel.

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Section: Declarations Figuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%