Abstract
This paper investigates the effect of yttria (Y2O3) coating on high temperature oxidation behaviour of low alloy 9 Cr–1Mo steel. The superficial coating is Y2O3 was prepared for experimental investigation. The isothermal corrosion study of uncoated and coated specimens was carried out in air oxidation environment at 973 K for 8 h. The corrosion rate and reaction kinetics were studied and the post corroded scales were characterized in SEM, EDS and XRD. The results clearly indicate that Y2O3 coated specimen improves the high temperature oxidation resistance than uncoated specimens. The improvement of oxidation resistance in presence of Y2O3 coating can be attributed to the changed mechanism of scale growth from outer cation migration to inner anion migration and enhancement of scale adhesion with the substrate. Further, enhancement of scale adhesion with the substrate in case of Y2O3 coating also improves the oxidation resistance. The detail mechanism of the oxidation of Y2O3 coated and uncoated specimen is further discussed in this paper.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Viswanathan, R., Henry, J.F., Tanzosh, J., Stanko, G., Shingledecker, J., and Vitalis, B., Proc. 4th Int. Conf. on Advances in Materials Technology for Fossil Power Plants, Hilton Head Island, 2004, pp. 3–19.
Abe, F., Okada, H., Wanikawa, S., Tabuchi, M., Itagaki, T., and Kimura, K., Proc. 7th Liege Conf. on Materials for Advanced Power Engineering, Liege, 2002, pp. 1397–1406.
Blum, R. and Vanstone, R.W., Proc. 6th Int. Charles Parsons Turbine Conf., Dublin, 2003, pp. 489–510.
Meyer, K.H., Int. Joint Power Generation Conf., PWRvol. 33, New York: American Society of Mechanical Engineers, 1998, pp. 831–841.
Stringer, J., High Temperatures Oxidation and Sulfidation Processes, Embury, J.D., Ed., New York: Permagon, 1990.
Ghosh, D. and Mitra, S.K., High Temp. Mater. Processes, 2011, vol. 30, nos. 1–2, pp. 81–85.
Ghosh, D., Roy, H., Roy, S., and Shukla, A.K., High Temp. Mater. Processes, 2011, vol. 28, nos. 1–2, pp. 109–114.
Ghosh, D., Shukla, A.K., and Mitra, S.K., Surf. Eng., 2013, vol. 29, pp. 584–587.
Ghosh, D., Shukla, A.K., and Mitra, S.K., Prot. Met. Phys. Chem. Surf., 2013, vol. 49, no. 6, pp. 749–752.
Li, H., Cui, X., and Chen, W., J. Electrochem. Soc., 2010, vol. 157, pp. 321–327.
Whittle, D.P. and Stringer, J., Philos. Trans. R. Soc. London, Ser. A, 1980, vol. 295, pp. 309–329.
Hasannejad, H. and Shahrabi, T., Surf. Eng., 2012, vol. 28, pp. 418–423.
Wang, Y., Guo, H.B., Li, Z.Y., and Gong, S.K., Surf. Eng., 2009, vol. 25, pp. 555–558.
Moon, D.P., Mater. Sci. Technol., 1989, vol. 5, pp. 754–763.
Author information
Authors and Affiliations
Corresponding author
Additional information
The article is published in the original.
Rights and permissions
About this article
Cite this article
Ghosh, D., Mukherjee, S., Das, S. et al. Effect of yttria(Y2O3) coating for high temperature oxidation resistance of 9Cr-1Mo steel. Prot Met Phys Chem Surf 52, 737–743 (2016). https://doi.org/10.1134/S2070205116040122
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2070205116040122