CHARACTERISATIONS OF CHROMIUM CARBIDE-BASED COATED COMBUSTOR LINER FOR GAS TURBINES
DOI:
https://doi.org/10.11113/jt.v76.5790Keywords:
Chromium carbide, wear characteristics, gas turbine, combustor linerAbstract
A gas turbine combustor liner experienced visible surface damages during its normal operation of 8000 hours. Small amplitudes of vibration during the operation contributed to a surface degradation, mainly wear. A chromium-carbide based hard coating was deposited via plasma spray technique on the outer surface of a combustor liner of a gas turbine engine. It was found that after the operation, the coating hardness had increased more than 30% compared to its minimum initial hardness and reached up to 744 HV particularly in the crossfire tube collar mating areas. Comparison between the coated and the uncoated liners were carried out in order to show how much the wear scars have been minimized throughout the operation under severe temperature of approximately 1, 500°C. It was found that in this study the coating of chromium-carbide is capable to reduce the wear damage due to the work hardening effect of the liner and their mating surfaces. Â
References
Burnell-Gray, J. S. and Datta, P. K. 1996. Surface Engineering Casebook: Solutions to Corrosion and Wear-related Failures. Woodhead Publishing Limited. England.
Stokes, J. 2008. The Theory and Application of the HVOF (High Velocity Oxy-Fuel) Thermal Spray Process. ISBN, New York.
Wu, L., Guo X. and Zhang, J. 2014. Abrasive Resistant Coatings – A Review.Indiana University, Indiana.
Fraser, D. and Caso, D. 2006. Inspection Interval Extension and Life Extension of Mature Frame Gas Turbine. Siemens Power Generation Inc.
Johari, A. D., Ghaffar A. K. A. and Ismail, I. 2011. CLEK Final Report, TNB Repair & Maintenance Sdn. Bhd. Kuala Lumpur.
Sahraoui, T., Fenineche, N., Montavon, G. and Coddet, C. 2004. Alternative to Chromium: Characteristics and Wear Behavior of HVOF Coatings for Gas Turbine Shafts Repair (Heavy-duty). Journal of Materials Processing Technology France.
Zikin, A., Hussainova, I., Katsich, C., Badisch, E. and Tomastik, C. 2012. Advanced Chromium Carbide-based Hardfacings. Surface & Coatings Technology. Elsevier. Austria.
Wank, A., Weilage, B., Pokhmuska, H., Friesen, E. and Riesel, G. 2006. Comparison of Hardmetal and Hard Chromium Coatings under Different Tribological Conditions, Surface & Coatings Technology. Elsevier. Austria.
Soares, C. 2008. Gas Turbine: A Handbook of Air, Land, and Sea Applications. Elsevier. Oxford. 135-142.
Yunus, S. M., Sekari S. A. 2014. Materials Engineering Group.
Ghabchi, A. 2011. Wear Resistant Carbide-based Thermal Sprayed Coatings: Process, Properties, Mechanical Degradation and Wear. ProQuest, Michigan.
Chatha, S. S., Sidhu H. S. and Sidhu, B. S. 2012. Characterisations and Corrosion-erosion Behaviour of Carbide-based Thermal Spray Coatings. Journal of Minerals & Materials Characterisation & Engineering.
Dorfman, M. R. 2002. Wear-Resistant Thermal Spray Coating. Sulzer Metco. New York.
Castillejo, F.E., Marulanda, D.M., Olaya J. J. and Alfonso, J. E. 2014. Wear and Corrosion Resistance of Niobium-chromium Carbide Coatings on AISI D2 Produced through TRD, Surface & Coatings Technology. Elsevier, Colombia.
Hejwowski, T., Szewczyk, S. and Weronski, A. 2000. An Investigation of the Abrasive and Erosive Wear of Flame-sprayed Coatings. Journal of Materials Processing Technology.
Oerlikon Metco. 2014. Solution Flash: Produce Excellent Quality PWA 257 High-energy Plasma Sprayed Carbide Coatings with TriplexPro-210. SF-0006.2 - TriplexProâ„¢-210 High Energy Coatings..
Oerlikan Metco. 2014. Material Product Data Sheet: Chromium Carbide –Nickel Chromium Powder Blends. DSMTS-0112.1 – Cr3C2 - NiCr Alloy Powder Blend
B. Bushan. 2001. Modern Tribology Handbook (Vol.1): Principles of Tribology, CRC Press LLC, Florida
Department of the Army. 1996. Fundamentals of Machine Tools. Washington DC. 2-4 – 2-14.
Baba, N. and Nishi, K. High-temperature member for use in gas turbine, Patent File: CA 2419018 A1.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.
