Failure Analysis of Power Plant Boiler Material
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Published:2019
Abstract
The failure of a boiler operating at 540 °C and 9.4 MPa was investigated by examining material samples from the near-failure region and by thermodynamic analysis. A scanning Auger microprobe, SEM, and commercial thermodynamic software codes were used in the investigation. Results indicated that the boiler failure was caused by grain-boundary segregation of phosphorous, tin, and nitrogen and the in-service formation of carbide films and granules on the grain boundaries.
J.H. Ai, H.Y. Lin, Y.X. Qi, Failure Analysis of Power Plant Boiler Material, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019, p 568–572, https://doi.org/10.31399/asm.fach.v03.c9001833
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