Vacuum Brazing of Inconel 718 to Waspaloy Superalloy Using BNi2 Brazing Filler

Zhi Shui Yu; Rui Feng Li; Kun Shi

doi:10.4028/www.scientific.net/AMM.236-237.26

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 236-237Vacuum Brazing of Inconel 718 to Waspaloy...

Vacuum Brazing of Inconel 718 to Waspaloy Superalloy Using BNi₂ Brazing Filler

Abstract:

Inconel 718 and Waspaloy superalloy was vacuum brazed using BNi2 filler. The effect of joint clearance and brazing temperature on the interfacial microstructure, element and microhardness distribution were studied systematically. The microstructure of the brazed joints is both mainly solid solution when the brazing clearance is 30μm at 1080 °C and 100μm at 1140 °C. The results show that the elements diffusion of nickel based filler is more active with the decrease of the joint clearance and increase of brazing temperature. The peak of microhardness is shown at the centerline of brazing seam.

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Periodical:

Applied Mechanics and Materials (Volumes 236-237)

Pages:

26-30

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.236-237.26

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Online since:

November 2012

Authors:

Zhi Shui Yu, Rui Feng Li, Kun Shi

Keywords:

Brazing Temperature, Inconel 718, Joint Clearance, Microstructure, Vacuum Brazing, Waspaloy

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