Performance differences between bare 17-4PH steel V103 profile (NACA 6505 with rounded leading edge (LE) and trailing edge (TE)) gas turbine engine axial compressor blades, and those coated with either a chromium-aluminum-titanium nitride (CrAlTiN) or a titanium-aluminum nitride (TixAl1−xN) erosion-resistant coating were tested. A coating thickness of 16 μm was used, based on experimental results in the literature. Coatings were applied using arc physical vapor deposition at the National Research Council of Canada (NRC). All blades were tested under identical operating conditions in the Royal Military College of Canada (RMC) turbomachinery erosion rig. Based on a realism factor (RF) defined by the authors, this experimental rig was determined to provide the best known approximation to actual compressor blade erosion in aircraft gas turbine engine axial compressors. An average brown-out erosive media concentration of was used during testing. An overall defined Leithead–Allan–Zhao (LAZ) score metric, based on mass and blade dimension changes, compared the erosion-resistant performance of the bare and coated blades. Blade surface roughness data were also obtained. Based on the LAZ Score, CrAlTiN-coated blades performed at least 79% better than bare blades, and TixAl1−xN-coated blades performed at least 93% better than bare blades. The TixAl1−xN-coated blades performed at least 33% better than the CrAlTiN-coated blades. Extrapolation of results predicted that a V-22 Osprey tiltrotor military aircraft, for example, could fly up to 79 more missions with TixAl1−xN-coated compressor blades in brown-out sand concentrations than with uncoated blades.
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November 2016
Research-Article
Enhanced Experimental Testing of New Erosion-Resistant Compressor Blade Coatings
Sean G. Leithead,
Sean G. Leithead
Department of Mechanical and
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: sean.leithead@rmc.ca
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: sean.leithead@rmc.ca
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William D. E. Allan,
William D. E. Allan
Department of Mechanical and
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: billy.allan@rmc.ca
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: billy.allan@rmc.ca
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Linruo Zhao,
Linruo Zhao
Institute for Aerospace Research,
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: linruo.zhao@nrc-cnrc.gc.ca
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: linruo.zhao@nrc-cnrc.gc.ca
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Qi Yang
Qi Yang
Institute for Aerospace Research,
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: qi.yang@nrc-cnrc.gc.ca
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: qi.yang@nrc-cnrc.gc.ca
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Sean G. Leithead
Department of Mechanical and
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: sean.leithead@rmc.ca
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: sean.leithead@rmc.ca
William D. E. Allan
Department of Mechanical and
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: billy.allan@rmc.ca
Aerospace Engineering,
Royal Military College of Canada,
Kingston, ON K7K 7B4, Canada
e-mail: billy.allan@rmc.ca
Linruo Zhao
Institute for Aerospace Research,
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: linruo.zhao@nrc-cnrc.gc.ca
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: linruo.zhao@nrc-cnrc.gc.ca
Qi Yang
Institute for Aerospace Research,
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: qi.yang@nrc-cnrc.gc.ca
National Research Council of Canada,
Ottawa, ON K1A 0R6, Canada
e-mail: qi.yang@nrc-cnrc.gc.ca
1Corresponding author.
Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received April 20, 2016; final manuscript received May 6, 2016; published online June 1, 2016. Editor: David Wisler.
J. Eng. Gas Turbines Power. Nov 2016, 138(11): 112603 (12 pages)
Published Online: June 1, 2016
Article history
Received:
April 20, 2016
Revised:
May 6, 2016
Citation
Leithead, S. G., Allan, W. D. E., Zhao, L., and Yang, Q. (June 1, 2016). "Enhanced Experimental Testing of New Erosion-Resistant Compressor Blade Coatings." ASME. J. Eng. Gas Turbines Power. November 2016; 138(11): 112603. https://doi.org/10.1115/1.4033580
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