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Oyelayo O. Ajayi
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Journal Articles

Bioderived Fuel Blend Dilution of Marine Engine Oil and Impact on Friction and Wear Behavior

Oyelayo O. Ajayi, Cinta Lorenzo-Martin, George Fenske, John Corlett, Chris Murphy, Steve Przesmitzki
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. April 2016, 138(2): 021603.
Paper No: TRIB-15-1089
https://doi.org/10.1115/1.4031781
Published Online: November 4, 2015
View Articletitled, Bioderived Fuel Blend Dilution of Marine Engine Oil and Impact on Friction and Wear Behavior
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Topics: Engines, Friction, Fuels, Wear, Viscosity, Ethanol, Boundary lubrication, Wear testing, Lubricants
Journal Articles

Surface Layer Modification of 6061 Al Alloy by Friction Stir Processing and Second Phase Hard Particles for Improved Friction and Wear Performance

M. Cinta Lorenzo-Martin, Oyelayo O. Ajayi
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. October 2014, 136(4): 044501.
Paper No: TRIB-14-1040
https://doi.org/10.1115/1.4027860
Published Online: July 9, 2014
View Articletitled, Surface Layer Modification of 6061 Al Alloy by Friction Stir Processing and Second Phase Hard Particles for Improved Friction and Wear Performance
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Topics: Aluminum alloys, Friction, Particulate matter, Wear
Proceedings Papers

Influence of Surface Texture on Micro EHL in Boundary Regime Sliding

Robert Erck, Oyelayo O. Ajayi, Cinta Lorenzo-Martin, George R. Fenske
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 97-99, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61065
https://doi.org/10.1115/IJTC2012-61065
View Paper titled, Influence of Surface Texture on Micro EHL in Boundary Regime Sliding
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Topics: Boundary lubrication, Carbon, Coating processes, Coatings, Disks, Friction, Grinding, Leakage, Lubrication, Steel
Proceedings Papers

Effects of Surface Contamination Layers and Roughness on the Determination of Mechanical Properties of Thin Films Using Nanoindentation

Nicholaos G. Demas, Oyelayo O. Ajayi, Iqbal Shareef
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 13-15, October 24–26, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61201
https://doi.org/10.1115/IJTC2011-61201
View Paper titled, Effects of Surface Contamination Layers and Roughness on the Determination of Mechanical Properties of Thin Films Using Nanoindentation
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Topics: Contamination, Mechanical properties, Nanoindentation, Surface roughness, Thin films, Coatings, Statistical analysis, Steel
Proceedings Papers

Effect of Laser Glazing and Laser Shock Peening on Tribological Performance of 1080 Carbon Steel

Saud Aldajah, Oyelayo O. Ajayi, George R. Fenske, Claude B. Reed, Zhiyue Xu
Proc. ASME. TRIB2004, ASME/STLE 2004 International Joint Tribology Conference, Parts A and B, 1667-1674, October 24–27, 2004
Publisher: American Society of Mechanical Engineers
Paper No: TRIB2004-64047
https://doi.org/10.1115/TRIB2004-64047
View Paper titled, Effect of Laser Glazing and Laser Shock Peening on Tribological Performance of 1080 Carbon Steel
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Topics: Carbon steel, Laser hardening, Lasers, Tribology, Shock (Mechanics), Friction, High power lasers, Shot peening, Wear, Cladding systems (Building)
Proceedings Papers

Effect of Reinforcing Carbon Fiber Morphology on Tribological Behavior of PEEK Polymers

Aaron C. Greco, Oyelayo O. Ajayi, Robert A. Erck, Jacqueline A. Johnson, George R. Fenske
Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 955-956, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-64374
https://doi.org/10.1115/WTC2005-64374
View Paper titled, Effect of Reinforcing Carbon Fiber Morphology on Tribological Behavior of PEEK Polymers
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Topics: Carbon fibers, Polymers, Tribology, Friction, Wear, Ethers (Class of compounds), Fibers
Proceedings Papers

Dry Machinability of Aluminum Alloys

Iqbal Shareef, Manikandan Natarajan, Oyelayo O. Ajayi
Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 831-832, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-64098
https://doi.org/10.1115/WTC2005-64098
View Paper titled, Dry Machinability of Aluminum Alloys
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Topics: Aluminum alloys, Coatings, Cutting, Cutting tools, Fluids, Machinability, Machining, Finishes, Wear, Aluminum
Proceedings Papers

X-Ray Diagnostics for Scuffing: Application to Phase Transformation in Nickel

Jeff Hershberger, Oyelayo O. Ajayi, Cinta Lorenzo-Martin, Jules L. Routbort, George R. Fenske
Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 145-146, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-63904
https://doi.org/10.1115/WTC2005-63904
View Paper titled, X-Ray Diagnostics for Scuffing: Application to Phase Transformation in Nickel
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Topics: Nickel, Phase transitions, X-rays
Proceedings Papers

Investigation of Scuffing Resistance and Tribological Performance of Laser Modified Surfaces

Saud Aldajah, Oyelayo O. Ajayi, George Fenske
Proc. ASME. WTC2005, World Tribology Congress III, Volume 2, 477-478, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-64030
https://doi.org/10.1115/WTC2005-64030
View Paper titled, Investigation of Scuffing Resistance and Tribological Performance of Laser Modified Surfaces
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Topics: Lasers, Tribology, Friction, Sliding friction, Cladding systems (Building), Damage, Deformation, Failure, High power lasers, Shock (Mechanics)
Proceedings Papers

Scuffing Performance of Laser Modified Surfaces Under Lubricated Contacts

Saud Aldajah, Oyelayo O. Ajayi, George R. Fenske
Proc. ASME. IJTC2006, Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology, 1065-1080, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12032
https://doi.org/10.1115/IJTC2006-12032
View Paper titled, Scuffing Performance of Laser Modified Surfaces Under Lubricated Contacts
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Topics: Lasers, Friction, Sliding friction, Cladding systems (Building), Damage, Deformation, Failure, High power lasers, Shock (Mechanics), Shot peening
Journal Articles

Investigation of Top of Rail Lubrication and Laser Glazing for Improved Railroad Energy Efficiency

Saud Aldajah, Oyelayo O. Ajayi, George R. Fenske, Sudhir Kumar
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. July 2003, 125(3): 643–648.
https://doi.org/10.1115/1.1537745
Published Online: June 19, 2003
View Articletitled, Investigation of Top of Rail Lubrication and Laser Glazing for Improved Railroad Energy Efficiency
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Topics: Friction, Lasers, Lubricants, Lubrication, Railroads, Rails, Stress, Wheels, Wear, Industrial lubrication systems