The aluminide and CeO2 and La2O3 containing aluminide coatings on carbon steel have been prepared by a pack cementation process. The influence of CeO2 and La2O3 additions on the oxidation rates of aluminide coatings has been investigated. The performance of coatings was studied by measuring oxidation kinetics, metallography, SEM and X‐ray diffraction analysis techniques. The oxidation‐resistance of coated carbon steel is discussed on the basis of a decrease in oxidation rates as well as adherence of oxide scales. The oxidation rates of carbon steel and aluminide coatings were markedly reduced in the presence of CeO2 and La2O3 in the temperature range of 700‐900°C. The oxidation rates were significantly affected by the morphology of oxide scales. In the case where the structure of oxides scales was not seriously disrupted due to decarburisation, the oxidation rates were significantly reduced.
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Research Article|
August 01 2002
High temperature oxidation behaviour of CeO2 and La2O3 modified aluminide coatings on carbon steel
M. Mobin;
M. Mobin
Associated Professor, in the Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
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H.K. Sharma;
H.K. Sharma
Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
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S.K. Hasan
S.K. Hasan
Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh, India
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Publisher: Emerald Publishing
Online ISSN: 1758-4221
Print ISSN: 0003-5599
© MCB UP Limited
2002
Anti-Corrosion Methods and Materials (2002) 49 (4): 283–294.
Citation
Mobin M, Sharma H, Hasan S (2002), "High temperature oxidation behaviour of CeO2 and La2O3 modified aluminide coatings on carbon steel". Anti-Corrosion Methods and Materials, Vol. 49 No. 4 pp. 283–294, doi: https://doi.org/10.1108/00035590210439757
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