Influence of vacuum brazing temperature on the microstructure of an Inconel 783 superalloy joint with a honeycomb sealing made of Hastelloy X superalloy

Przegląd Spawalnictwa

Irena Dul¹  Kamil Krystek²  Maciej Motyka³ 

[1] ;Pratt & Whitney;Rzeszow University of Technology;

关键词: Inconel 783;    Hastelloy X;    vacuum brazing;    honeycomb sealing;   

DOI  :  10.26628/wtr.v91i9.1061

来源: DOAJ

【 摘 要 】

The purpose of this work was to assess the influence ofbrazing temperature on microstructure of the cobalt-based Inconel 783 superalloy joint with nickel-based Hastelloy X superalloy ‒ seal shaped in honeycomb structure. Brazing process was combined with solution heat treatment of Inconel 783 in one operation. Nickel based brazing filler metal from BNi-2 group was used. Tests were conducted in 1121 °C (solutionizing temperature), 1075 °C and 1030 °C in 1 hour. Subsequently, metallographic investigations were made using optical and scanning electron microscopes, mainly focused on changes in a seal made of Hastelloy X, where joint erosion in higher temperature was observed.

【 授权许可】

Unknown