Remaining life estimation of a service exposed economiser tube

Mukhopadhyay, N K and Ghosh Chowdhury, S and Sinha, R K and Bhattacharya, D K and Chaudhuri, S (1999) Remaining life estimation of a service exposed economiser tube. Engineering Failure Analysis, 6 (4). pp. 233-243.

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A service exposed (80,000 hr) economiser tube of a 60 MW boiler of a thermal power plant was investigated for the detailed metallurgical assessment necessary for remaining life estimation. The investigation included hot tensile tests, hardness measurement, microscopy and thickness measurement. Analysis revealed that there was no degradation of mechanical properties and microstructural features. The reduction in tube thickness was primarily due to oxidation and corrosion/erosion processes. Taking into account all the experimental data and mechanics aspects of the tube an estimated remaining life of 20,000 hrs was calculated and thus recommended for further use.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Power plant; Economiser tube; Oxidation; Corrosion; Remaining life
Divisions:Material Science and Technology
ID Code:369
Deposited On:10 Dec 2009 21:15
Last Modified:25 Jan 2012 11:28
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