Effects of Long-Time Service on the Material of a Steam Boiler Fire Tube

After 23 years of operation, the fire tube of a 2000 kg steam/h boiler broke down in a water-filling operation. Because of the intense vaporization processes, the boiler body blew up at about 250 m. The study of metallographic features, of mechanical properties in various areas of the fire tube poin...

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Bibliographic Details
Published inMaterials characterization Vol. 40; no. 1; pp. 43 - 48
Main Authors Levcovici, D.T, Munteanu, V, Levcovici, S.M, Ursu, M
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Inc 1998
Elsevier Science
Subjects
Applied sciences
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Fatigue, corrosion fatigue, embrittlement, cracking, fracture and failure
Fatigue, embrittlement, and fracture
Materials science
Metals. Metallurgy
Physics
Treatment of materials and its effects on microstructure and properties
Ruptures
Phase transformations
Low carbon steel
Embrittlement
Carbon steels
Mechanical properties
Metallography
Experimental study
Vaporization
Lifetime
Property structure relationship
Steam boiler
Microstructure
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Summary:After 23 years of operation, the fire tube of a 2000 kg steam/h boiler broke down in a water-filling operation. Because of the intense vaporization processes, the boiler body blew up at about 250 m. The study of metallographic features, of mechanical properties in various areas of the fire tube pointed out microstructural transformations that caused the material’s embrittlement and damage.
ISSN:1044-5803
1873-4189
DOI:10.1016/S1044-5803(97)00108-3