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Crack Analysis in Welds of Boiler Tubes Made of T24 Steel

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Abstract:

The aim of the work was to assess the nature and causes of defects – cracks in the welds of membrane wall panel tubes (MW) of a thermal power plant boiler made of T24 steel. This steel is intended to produce MW evaporators and superheaters for power plant units operating in the area of supercritical steam conditions. Its advantage, compared to the originally used materials, is higher creep resistance. The main expected advantage of the steel was to obtain optimal properties of welded joints without subsequent post-weld heat treatment (PWHT).

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Periodical:

Materials Science Forum (Volume 1166)

Pages:

31-37

DOI:

https://doi.org/10.4028/p-9HzbjV

Citation:

Cite this paper

Online since:

November 2025

Authors:

Josef Kasl*, Růžena Fikrlová

Keywords:

Failure, Fatigue, Fractography, Furnace Wall Tubes, Microstructure, Steel T24, Stress Relaxation Cracking, Weld Joint

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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References

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