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Metallurgist
Published in: Metallurgist 1-2/2023

26-05-2023

Effect of the Operating Temperature of a Steam Methane Reforming Furnace on Structural Changes and Crack Susceptibility in Welding 800HT Nickel Alloy

Authors: A. S. Gudenko, V. N. Skorobogatykh, A. A. Korneev, I. V. Bardin, N. V. Parshikova, I. I. Bukharin, E. A. Makarova

Published in: Metallurgist | Issue 1-2/2023

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Abstract

The long-term operation of 800HT nickel alloy parts of a steam methane reforming furnace at temperatures above 800°C leads to significant embrittlement of the metal, sharp grain growth, and precipitation and coagulation of metal carbides along the grain boundaries. The operation of equipment at lower temperatures (400–420°C) does not lead to significant changes in the microstructure of 800HT nickel alloy; hence, no embrittlement. It was found out that the cause of the cracking of the welded joint after repair is the degradation of the base metal during operation at temperatures above 800°C.
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Metadata
Title
Effect of the Operating Temperature of a Steam Methane Reforming Furnace on Structural Changes and Crack Susceptibility in Welding 800HT Nickel Alloy
Authors
A. S. Gudenko
V. N. Skorobogatykh
A. A. Korneev
I. V. Bardin
N. V. Parshikova
I. I. Bukharin
E. A. Makarova
Publication date
26-05-2023
Publisher
Springer US
Published in
Metallurgist / Issue 1-2/2023
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-023-01485-5

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