Hot Corrosion Behaviour of Detonation Gun Sprayed Stellite-6 and Stellite-21 Coating on Boiler Steel SAE 431 at 900°C
Joint Authors
Rai, A. K.
Kumar, R.
Mishra, N. K.
Mishra, S. B.
Source
International Journal of Corrosion
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-06
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Hot corrosion is the serious problem in gas turbines, superheaters, and economizers of coal-fired boilers.
It occurs due to the usage of wide range of fuels such as coal, oil, and so on at the elevated temperatures.
Protective coatings on boiler steels are used under such environments.
In the present investigation, Stellite-6 and Stellite-21 coatings have been deposited on boiler steel SAE 431 by detonation gun method.
The hot corrosion performance of Stellite-6 and Stellite-21 coated as well as uncoated SAE 431 steel has been evaluated in aggressive environment of Na2SO4-82%Fe2(SO4)3 under cyclic conditions at an elevated temperature of 900°C for total duration of 50 cycles.
Thermogravimetric technique was used to approximate the kinetics of hot corrosion.
Stellite-6 coating imparted better hot corrosion resistance than Stellite-21 coating in the given environment.
Scanning electron microscopy was used to characterize the surface of hot corrosion products.
American Psychological Association (APA)
Mishra, N. K.& Rai, A. K.& Mishra, S. B.& Kumar, R.. 2014. Hot Corrosion Behaviour of Detonation Gun Sprayed Stellite-6 and Stellite-21 Coating on Boiler Steel SAE 431 at 900°C. International Journal of Corrosion،Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-449401
Modern Language Association (MLA)
Mishra, N. K.…[et al.]. Hot Corrosion Behaviour of Detonation Gun Sprayed Stellite-6 and Stellite-21 Coating on Boiler Steel SAE 431 at 900°C. International Journal of Corrosion No. 2014 (2014), pp.1-4.
https://search.emarefa.net/detail/BIM-449401
American Medical Association (AMA)
Mishra, N. K.& Rai, A. K.& Mishra, S. B.& Kumar, R.. Hot Corrosion Behaviour of Detonation Gun Sprayed Stellite-6 and Stellite-21 Coating on Boiler Steel SAE 431 at 900°C. International Journal of Corrosion. 2014. Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-449401
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449401