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Proceedings Papers

Computed Tomography Wall Thickness Inspection to Support Gas Turbine Blade Life Extension

Scott Hastie, Anthony Chan, Kevin Wiens, Doug Nagy, Robert Tollett, Paul Lowden
Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A021, June 7–11, 2021
Paper No: GT2021-60316
DOI: https://doi.org/10.1115/GT2021-60316
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Topics: Blades, Computerized tomography, Gas turbines, Inspection, Life extension, Wall thickness
Proceedings Papers

Geometric Effects of Thermal Barrier Coating Damage on Turbine Blade Temperatures

Shane Colón, Mark Ricklick, Doug Nagy, Amy Lafleur
Proc. ASME. GT2019, Volume 2D: Turbomachinery, V02DT47A009, June 17–21, 2019
Paper No: GT2019-90886
DOI: https://doi.org/10.1115/GT2019-90886
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Topics: Damage, Temperature, Thermal barrier coatings, Turbine blades, Blades, Mach number, Reynolds number, Flat plates, Heat transfer, Metals
Proceedings Papers

Tribological Behaviours of Titanium Nitride and Chromium Nitride Based PVD Coating Systems

F. Cai, Xiao Huang, Q. Yang, Doug Nagy
Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 41-49, June 11–15, 2012
Paper No: GT2012-68107
DOI: https://doi.org/10.1115/GT2012-68107
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Topics: Coatings, Titanium, Tribology, Erosion, Coating processes, Wear, Friction, Young's modulus, Cathode ray oscilloscopes, Electron beams
Journal Articles

Tribological Behaviors of Titanium Nitride- and Chromium-Nitride-Based Physical Vapor Deposition Coating Systems

Feng Cai, Xiao Huang, Qi Yang, Doug Nagy
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Gas Turbines: Structures And Dynamics
J. Eng. Gas Turbines Power. November 2012, 134(11): 112504.
DOI: https://doi.org/10.1115/1.4007168
Published Online: October 1, 2012
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Topics: Coating processes, Coatings, Wear, Erosion, Tribology
Journal Articles

Effect of Tungsten Addition on the Nucleation of Borides in Wide Gap Brazed Joint

Daniel McGuire, Xiao Huang, Doug Nagy, Weijie Chen
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research Papers
J. Eng. Gas Turbines Power. June 2010, 132(6): 062101.
DOI: https://doi.org/10.1115/1.4000136
Published Online: March 24, 2010
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Topics: Alloys, Brazing, Nucleation (Physics), Tungsten, Grinding, Fillers (Materials), Ductility, Gas turbines, Superalloys
Proceedings Papers

Effect of Tungsten Addition on the Nucleation of Borides in Wide Gap Brazed Joint

Daniel McGuire, Xiao Huang, Doug Nagy, Weijie Chen
Proc. ASME. GT2009, Volume 4: Cycle Innovations; Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine, 721-729, June 8–12, 2009
Paper No: GT2009-59079
DOI: https://doi.org/10.1115/GT2009-59079
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Topics: Nucleation (Physics), Tungsten, Alloys, Brazing, Brittleness, Ductility, Fillers (Materials), Intermetallic compounds, Fatigue failure, Fatigue life
Proceedings Papers

Wide Gap Braze Repair Using Vertically Laminated Repair Scheme

Doug Nagy, Xiao Huang
Proc. ASME. GT2008, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Manufacturing, Materials and Metallurgy; Microturbines and Small Turbomachinery, 389-396, June 9–13, 2008
Paper No: GT2008-50046
DOI: https://doi.org/10.1115/GT2008-50046
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Topics: Maintenance, Brazing, Intermetallic compounds, Alloys, Slurries, Superalloys, Cycles, Damage, Engines, Fillers (Materials)
Proceedings Papers

Effect of Ruthenium, Rhenium and Yttria Additions on the Microstructure of Wide Gap Brazing of IN738

Xiao Huang, Scott Yandt, Doug Nagy, Matthew Yao
Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 25-33, May 14–17, 2007
Paper No: GT2007-27129
DOI: https://doi.org/10.1115/GT2007-27129
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Topics: Brazing, Ruthenium, Alloys, High temperature, Maintenance, Filler metals, Mechanical properties, Stress, Superalloys, Crystals
Proceedings Papers

LPM™ Composite Overlay for Erosion Protection of Turbine Nozzles

Doug Nagy, Gerry Bergstaller
Proc. ASME. GT2005, Volume 2: Turbo Expo 2005, 923-929, June 6–9, 2005
Paper No: GT2005-69019
DOI: https://doi.org/10.1115/GT2005-69019
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Topics: Composite materials, Erosion, Nozzles, Overlays (Materials engineering), Turbines
Journal Articles

Wide Gap Braze Repair Using Vertically Laminated Repair Scheme

Doug Nagy, Xiao Huang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research Papers
J. Eng. Gas Turbines Power. January 2009, 131(1): 012101.
DOI: https://doi.org/10.1115/1.2967496
Published Online: October 13, 2008
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Topics: Alloys, Brazing, Fillers (Materials), Maintenance, Slurries, Superalloys, Cycles, Gas turbines, Engines, Intermetallic compounds