MATEC Web of Conferences
Volume 13, 2014ICPER 2014 - 4th International Conference on Production, Energy and Reliability
|Number of page(s)||7|
|Section||Inspection, Maintenance and Operations|
|Published online||17 July 2014|
Hot Corrosion Studies in Coal Fired Boiler Environment
1 Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Bander Seri Iskander, Tronoh 31750, Malaysia
2 SSIT, B. Gagaram (V), Sathupally-Khammam., Andhra Pradesh, INDIA
3 Centre for Intelligent Signal & Imaging Research, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia
Hot corrosion behaviour of the bare and D-gun coated superfer 800H exposed to low temperature super-heater zone of the coal fired boiler of Guru Nanak Dev Thermal Power Plant, Bathinda, Punjab, India. The specimens were hanged in the platen super-heater of coal fired boiler where the gas temperature was around 900 °C ±10 °C. Hot corrosion experiments were performed for 10 cycles, each cycle consisting of 100 hours exposure followed by 1 hour cooling at ambient temperature. Weight change measurements were done at the end of each cycle. The weight change data used for predicting hot corrosion behaviour of the coated alloys after the total exposure of 1000 hours. The different phases and their distribution in the hot corroded specimens were analysed with the help of FE-SEM/EDS and X-ray mapping.
© Owned by the authors, published by EDP Sciences, 2014
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