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

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Kamil Krystek
Irena Dul
Maciej Motyka


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.


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How to Cite
K. Krystek, I. Dul, and M. Motyka, “Influence of vacuum brazing temperature on the microstructure of an Inconel 783 superalloy joint with a honeycomb sealing made of Hastelloy X superalloy”, Weld. Tech. Rev., vol. 91, no. 9, pp. 27-37, Nov. 2019.
Original Articles


Babul T., Jakubowski J., Kopeć J., Kowalski S., Senkara J., Turowska L., Lutowanie próżniowe uszczelnień ulowych w aparatach kierujących wykonanych ze stopów Hastelloy i Inconel z zastosowaniem lutu NiCrSiB. Welding Technology Review, 2007, Vol. 79(9), 124-129.

Zhang L., He L., Hu H., Feng H., Honeycomb seal technology achieves superior sealing effect in centrifugal air compressor – Part I. Sealing Technology, 2018, Vol. 2018(7), 8-10.

Collins D., Teixeira J., Crudgington P., The degradation of abradable honeycomb labyrinth seal performance due to wear. Sealing Technology, 2008, Vol. 2008(8), 7-10.

Kay D., Honeycomb-brazing essentials for successful use as turbine seals. Industrial Heating, 2003, Vol. 70(11), 33-37.

Sporer D., Fortuna D., Selecting materials for brazing a honeycomb in turbine engines. Welding Journal, 2014,
Vol. 93(2), 44-48.

Special Metals, online: alloys/inconel/inconel-alloy-783.pdf (access date 08.05.2019).

Kang B., Liu X., Cisloiu C., Chang K-M., High temperature moire interferometry investigation of creep crack growth of Inconel 783/environment and β-phase effects. Materials Science and Engineering: A, 2003, Vol. 347(1-2), 205-213.

Ma L., Chang K-M., Effects of different metallurgical processing on microstructures and mechanical properties of Inconel alloy 783. Journal of Materials Engineering and Performance, 2004, Vol. 13(1), 32-38.

Haynes International. (access date 08.05.2019),

Baranowski J., Breliński J., Boretius M., Lutowanie części szczególnie odpowiedzialnych spoiwem AMS4777 (BNi-2). Welding Technology Review, 2007, Vol. 79(9), 22-25.

Prince & Izant Company. 4777_BNi-2_TDS.pdf (access date 08.05.2019).

American Welding Society (AWS) C3 Committee on Brazing and Soldering. Brazing Handbook, 5th ed.; American Welding Society: Miami FL, United States of America, 2007, 164.