Vacuum Brazing of Stainless Steel Depending on the Surface Preparation Method and Temperature of the Process

• Autorzy: Hebda M. , Kaczor P. , Miernik K.

Identyfikatory

DOI

10.24425/amm.2019.126210

• Języki publikacji: EN

Abstrakty

EN

This paper discusses issues related to optimising the technological parameters of the process of brazing gold in a vacuum furnace. An investigation of the brazing process was carried out for materials used in constructing components for aircraft engine fuel systems. The vacuum brazed material was AMS 5510 stainless steel (in the form of plates and pipes). AMS 4787 (BAu-4) was used as the brazing filler. In particular, the influence of the method of preparing the surface on solder spreading and the thickness of the diffusion zone were analysed. The best spreading of solder was obtained for nickel plated surfaces. When the sample surface was more rough or scratched, the effect of the spreading of solder was limited and the diffusion process of the solder into the base material became dominant. Moreover, the influence of the brazing temperature on microstructure changes and on interdiffusion of the AMS 5510 stainless steel/BAu-4 solder system was determined. It was observed that an increase in the brazing temperature modifies the morphology of the formed joint by forming a massive and rounded phase. Furthermore, an increase in the brazing temperature enhances the exchange of components.

Słowa kluczowe

EN

vacuum brazing; stainless steel; surface preparation; brazing temperature

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 5--11
• Opis fizyczny: Bibliogr. 21 poz., fot., rys., tab.

Twórcy

autor

Hebda M.

• Cracow University of Technology, Institute of Materials Engineering, 24 Warszawska Str., 31-155 Kraków, Poland

autor

Kaczor P.

• Pratt&Whitney Tubes Sp. z o.o., 4 Grabska Str., 32-005 Niepołomice, Poland

autor

Miernik K.

• Cracow University of Technology, Institute of Materials Engineering, 24 Warszawska Str., 31-155 Kraków, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).