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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/11089
Title: Characterization of slurry-based mullite coating deposited on P91 steel welds
Authors: Kanwal S.
Thakare J.G.
Pandey C.
Singh I.
Mahapatra M.M.
Published in: Journal of the Australian Ceramic Society
Abstract: Ceramic coatings are widely used as thermal and environment barrier coatings due to their inert properties and capability to withstand high temperature. Ceramic coatings are commonly deposited by air plasma spray process and electron beam physical vapor deposition. In the present work, a cost-effective, slurry-based dip coating technique was developed to deposit mullite-based ceramic coating on the P91 steel substrate. The coating has been characterized by X-ray diffraction technique and scanning electron microscopy. Sintering of coatings was carried out in the temperature range of 900–1000 °C. Sintering time was varied between 0.5 and 1 h. Energy dispersive spectroscopy was carried out to study the distribution and diffusion of constituent elements during high-temperature sintering. Potentiodynamic polarization tests and thermo-gravimetric analysis were performed to investigate the corrosion behavior of the coating. The coating sintered at 1000 °C was found to be free from cracks and other microdefects. The corrosion rate of coating sintered at 1000 °C was found to be 26.06 mpy whereas the uncoated sample showed a higher corrosion rate of 153.7 mpy. © 2018, Australian Ceramic Society.
Citation: Journal of the Australian Ceramic Society (2019), 55(2): 519-528
URI: https://doi.org/10.1007/s41779-018-0258-4
http://repository.iitr.ac.in/handle/123456789/11089
Issue Date: 2019
Publisher: Springer International Publishing
Keywords: Ceramic
Corrosion
HAZ
Porosity
Slurry coating
ISSN: 25101560
Author Scopus IDs: 57208623094
57195987957
56494528900
57204061377
15044890300
Author Affiliations: Kanwal, S., Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorke, Uttarakhand 247667, India
Thakare, J.G., Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorke, Uttarakhand 247667, India
Pandey, C., Mechanical Department SRM-IST NCR Campus, Modinagar, India
Singh, I., Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorke, Uttarakhand 247667, India
Mahapatra, M.M., School of Mechanical Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, Odisha 751013, India
Corresponding Author: Thakare, J.G.; Mechanical and Industrial Engineering Department, Indian Institute of Technology RoorkeeIndia; email: jayantgt88@gmail.com
Appears in Collections:Journal Publications [ME]

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