1-20 of 24
O. Ajayi
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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 Article titled, Bioderived Fuel Blend Dilution of Marine Engine Oil and Impact on Friction and Wear Behavior
Open the PDF for Bioderived Fuel Blend Dilution of Marine Engine Oil and Impact on Friction and Wear Behavior in another window
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 Article titled, Surface Layer Modification of 6061 Al Alloy by Friction Stir Processing and Second Phase Hard Particles for Improved Friction and Wear Performance
Open the PDF for Surface Layer Modification of 6061 Al Alloy by Friction Stir Processing and Second Phase Hard Particles for Improved Friction and Wear Performance in another window
Topics: Aluminum alloys, Friction, Particulate matter, Wear
Proceedings Papers

Effect of Coating Thickness on Tribological Performance of CrN in Dry Sliding Contact

C. Lorenzo Martin, O. O. Ajayi, S. Torrel, N. Demas, A. Erdemir, R. Wei
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 75-77, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61172
https://doi.org/10.1115/IJTC2012-61172
View Paper titled, Effect of Coating Thickness on Tribological Performance of CrN in Dry Sliding Contact
Open the PDF for Effect of Coating Thickness on Tribological Performance of CrN in Dry Sliding Contact in another window
Topics: Coatings, Tribology, Friction, Stress, Wear, Cutting, Diluents, Mechanical behavior, Piston rings, Plasmas (Ionized gases)
Proceedings Papers

Experimental Investigation of Transition in Lubrication Regime for Thin-Film Coated Surfaces

C. Lorenzo Martin, O. O. Ajayi, S. Torrel, G. R. Fenske, R. A. Erck
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 251-253, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61171
https://doi.org/10.1115/IJTC2012-61171
View Paper titled, Experimental Investigation of Transition in Lubrication Regime for Thin-Film Coated Surfaces
Open the PDF for Experimental Investigation of Transition in Lubrication Regime for Thin-Film Coated Surfaces in another window
Topics: Lubrication, Thin films, Coatings, Friction, Tribology, Bearings, Carbon, Composite materials, Design, Engineers
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
Open the PDF for Influence of Surface Texture on Micro EHL in Boundary Regime Sliding in another window
Topics: Boundary lubrication, Carbon, Coating processes, Coatings, Disks, Friction, Grinding, Leakage, Lubrication, Steel
Proceedings Papers

Integrity Management of Offshore Platforms: A Case Study of a Multinational Company in the Coast of West Africa

O. O. Ajayi
Proc. ASME. IMECE2010, Volume 11: New Developments in Simulation Methods and Software for Engineering Applications; Safety Engineering, Risk Analysis and Reliability Methods; Transportation Systems, 361-366, November 12–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2010-40389
https://doi.org/10.1115/IMECE2010-40389
View Paper titled, Integrity Management of Offshore Platforms: A Case Study of a Multinational Company in the Coast of West Africa
Open the PDF for Integrity Management of Offshore Platforms: A Case Study of a Multinational Company in the Coast of West Africa in another window
Topics: Offshore platforms, Shorelines
Proceedings Papers

Energy Efficient Surface Hardening of 4140 Steel by Friction Stir Processing for Tribological Applications

C. Lorenzo-Martin, O. Ajayi, C. Smith, S. Krol
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 63-65, October 24–26, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61202
https://doi.org/10.1115/IJTC2011-61202
View Paper titled, Energy Efficient Surface Hardening of 4140 Steel by Friction Stir Processing for Tribological Applications
Open the PDF for Energy Efficient Surface Hardening of 4140 Steel by Friction Stir Processing for Tribological Applications in another window
Topics: Friction, Steel, Surface hardening, Tribology, Hardening, Heat, Wear, Heat treating (Metalworking), Alloy steel, Alloys
Proceedings Papers

Enhancement of Tribological Performance of 6061 Aluminum Alloy by Second Phase Hardening via Friction Stir Processing

C. Lorenzo-Martin, O. Ajayi, G. Fenske
Proc. ASME. IJTC2011, ASME/STLE 2011 Joint Tribology Conference, 67-69, October 24–26, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2011-61203
https://doi.org/10.1115/IJTC2011-61203
View Paper titled, Enhancement of Tribological Performance of 6061 Aluminum Alloy by Second Phase Hardening via Friction Stir Processing
Open the PDF for Enhancement of Tribological Performance of 6061 Aluminum Alloy by Second Phase Hardening via Friction Stir Processing in another window
Topics: Aluminum alloys, Friction, Hardening, Tribology, Particulate matter, Alloys, Bearing steel, Wear, Wear testing
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
Open the PDF for Effects of Surface Contamination Layers and Roughness on the Determination of Mechanical Properties of Thin Films Using Nanoindentation in another window
Topics: Contamination, Mechanical properties, Nanoindentation, Surface roughness, Thin films, Coatings, Statistical analysis, Steel
Proceedings Papers

Frictional Behavior of Boundary Lubricated Contacts: Effect of Tribochemical Surface Films

C. Lorenzo-Martin, O. O. Ajayi, JungKyu Lee, Andreas A. Polycarpou
Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 79-81, October 19–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2009-15098
https://doi.org/10.1115/IJTC2009-15098
View Paper titled, Frictional Behavior of Boundary Lubricated Contacts: Effect of Tribochemical Surface Films
Open the PDF for Frictional Behavior of Boundary Lubricated Contacts: Effect of Tribochemical Surface Films in another window
Topics: Thin films, Friction, Lubricants, Fluid films, Shear (Mechanics), Contact mechanics, Die cutting, Fluids, Gears, Lubrication
Proceedings Papers

The Effect of Lubricant Chemistry on Wear and Scuffing of Coated Surfaces

K. Cheenkachorn, J. M. Perez, O. O. Ajayi, G. R. Fenske
Proc. ASME. ICES2003, Design, Application, Performance and Emissions of Modern Internal Combustion Engine Systems and Components, 409-413, May 11–14, 2003
Publisher: American Society of Mechanical Engineers
Paper No: ICES2003-0659
https://doi.org/10.1115/ICES2003-0659
View Paper titled, The Effect of Lubricant Chemistry on Wear and Scuffing of Coated Surfaces
Open the PDF for The Effect of Lubricant Chemistry on Wear and Scuffing of Coated Surfaces in another window
Topics: Chemistry, Coatings, Friction, Lubricants, Wear
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
Open the PDF for Effect of Laser Glazing and Laser Shock Peening on Tribological Performance of 1080 Carbon Steel in another window
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
Open the PDF for Effect of Reinforcing Carbon Fiber Morphology on Tribological Behavior of PEEK Polymers in another window
Topics: Carbon fibers, Polymers, Tribology, Friction, Wear, Ethers (Class of compounds), Fibers
Proceedings Papers

Scuffing Resistance of Laser Textured Surfaces

M. K. Kazmanli, O. L. Eryilmaz, A. Erdemir, O. Ajayi, I. Etsion, M. Urgen
Proc. ASME. WTC2005, World Tribology Congress III, Volume 2, 467-469, September 12–16, 2005
Publisher: American Society of Mechanical Engineers
Paper No: WTC2005-64013
https://doi.org/10.1115/WTC2005-64013
View Paper titled, Scuffing Resistance of Laser Textured Surfaces
Open the PDF for Scuffing Resistance of Laser Textured Surfaces in another window
Topics: Coatings, Lasers, Nanocomposites
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
Open the PDF for Investigation of Scuffing Resistance and Tribological Performance of Laser Modified Surfaces in another window
Topics: Lasers, Tribology, Friction, Sliding friction, Cladding systems (Building), Damage, Deformation, Failure, High power lasers, Shock (Mechanics)
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
Open the PDF for Dry Machinability of Aluminum Alloys in another window
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
Open the PDF for X-Ray Diagnostics for Scuffing: Application to Phase Transformation in Nickel in another window
Topics: Nickel, Phase transitions, X-rays
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
Open the PDF for Scuffing Performance of Laser Modified Surfaces Under Lubricated Contacts in another window
Topics: Lasers, Friction, Sliding friction, Cladding systems (Building), Damage, Deformation, Failure, High power lasers, Shock (Mechanics), Shot peening
Proceedings Papers

Laser Glazing Process Development and Optimization for Railroad Applications

S. H. Aldajah, O. O. Ajayi, G. 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, 1081-1107, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12095
https://doi.org/10.1115/IJTC2006-12095
View Paper titled, Laser Glazing Process Development and Optimization for Railroad Applications
Open the PDF for Laser Glazing Process Development and Optimization for Railroad Applications in another window
Topics: Lasers, Optimization, Railroads, Rails, Friction, Wheels, Fuels, Gages, Lubricants, Trains
Proceedings Papers

Full Scale Friction and Durability Testing of Laser Glazed Rail

S. H. Aldajah, O. O. Ajayi, G. 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, 1109-1144, October 23–25, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2006-12096
https://doi.org/10.1115/IJTC2006-12096
View Paper titled, Full Scale Friction and Durability Testing of Laser Glazed Rail
Open the PDF for Full Scale Friction and Durability Testing of Laser Glazed Rail in another window
Topics: Durability, Friction, Lasers, Rails, Testing, Adhesion, Wheels, Cracking (Materials), Energy dissipation, Force measurement