Experimental Characterization of Sliding Friction: Crossing From Deformation to Plowing Contact

M. R. Lovell; Zhi Deng; M. M. Khonsari

doi:10.1115/1.1286217

Journal of Tribology | Volume 122 | Issue 4 | TECHNICAL PAPERS

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TECHNICAL PAPERS

Experimental Characterization of Sliding Friction: Crossing From Deformation to Plowing Contact

M. R. Lovell, Zhi Deng and M. M. Khonsari

[+] Author and Article Information

M. R. Lovell, Zhi Deng

Center for Robotics and Manufacturing Systems, University of Kentucky, Lexington, KY 40506-0108

M. M. Khonsari

Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803

J. Tribol 122(4), 856-863 (Jan 06, 2000) (8 pages) doi:10.1115/1.1286217 History: Received July 07, 1999; Revised January 06, 2000

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References

Figures

Mechanism of the interaction between a harder tool and a softer deformable metal: (a) the interaction of contact surfaces; (b) The transfer model of wear particle formation

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The apparatus photograph and operating principle of the pin-on-disk tribometer: (a) FALEX ISC-200PC type pin-on-disk tribometer; (b) The operating principle of the pin-on-disk tribometer

View Large | Save Figure | Download Slide (.ppt)

Typical friction coefficient versus sliding distance curves

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The wear track of pin on the disk

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The variation of the friction coefficient with the shear factor, lubricant and indentor shape (v=500 mm/s,(R_a)_disk=0.69 μm): (a) ball-shaped pin (d₀=3.18 mm); (b) ball-shaped pin (d₀=6.35 mm); and (c) ball-shaped pin (d₀=12.70 mm). (From Komvopoulos et al. 19.)

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Optical micrographs of the disk surface acted by (a) low and (b) high normal loads (Oil A,v=500 mm/s,d₀=6.35 mm): (a) disk surface without waves or grooves (P=1.22 N); (b) Disk surface with waves (P=4.41 N)

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The variation of the friction coefficient with the sliding speed and the apparent contact pressure at different lubricants for the ball-shaped pin (d₀=3.18 mm): (a) oil A; (b) oil B; and (c) grease

View Large | Save Figure | Download Slide (.ppt)

The geometry of a cone-shaped pin and its contact situation with the disk: (a) pin geometry; and (b) pin head penetrating into the disk under the normal load of 0.98 N

View Large | Save Figure | Download Slide (.ppt)

The variation of the friction coefficient with the shear factor and indentor shape for Oil B (v=500 mm/s,(R_a)_disk=0.69 μm)

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Lovell MR, Deng Z, Khonsari MM. Experimental Characterization of Sliding Friction: Crossing From Deformation to Plowing Contact. ASME. J. Tribol. 2000;122(4):856-863. doi:10.1115/1.1286217.

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Experimental Characterization of Sliding Friction: Crossing From Deformation to Plowing Contact

References

Figures

Mechanism of the interaction between a harder tool and a softer deformable metal: (a) the interaction of contact surfaces; (b) The transfer model of wear particle formation

The apparatus photograph and operating principle of the pin-on-disk tribometer: (a) FALEX ISC-200PC type pin-on-disk tribometer; (b) The operating principle of the pin-on-disk tribometer

Typical friction coefficient versus sliding distance curves

The wear track of pin on the disk

The variation of the friction coefficient with the shear factor, lubricant and indentor shape (v=500 mm/s,(R_a)_disk=0.69 μm): (a) ball-shaped pin (d₀=3.18 mm); (b) ball-shaped pin (d₀=6.35 mm); and (c) ball-shaped pin (d₀=12.70 mm). (From Komvopoulos et al. 19.)

Optical micrographs of the disk surface acted by (a) low and (b) high normal loads (Oil A,v=500 mm/s,d₀=6.35 mm): (a) disk surface without waves or grooves (P=1.22 N); (b) Disk surface with waves (P=4.41 N)

The variation of the friction coefficient with the sliding speed and the apparent contact pressure at different lubricants for the ball-shaped pin (d₀=3.18 mm): (a) oil A; (b) oil B; and (c) grease

The geometry of a cone-shaped pin and its contact situation with the disk: (a) pin geometry; and (b) pin head penetrating into the disk under the normal load of 0.98 N

The variation of the friction coefficient with the shear factor and indentor shape for Oil B (v=500 mm/s,(R_a)_disk=0.69 μm)

Tables

Errata

Discussions

Related Content

Journals

Conference Proceedings

eBooks

Experimental Characterization of Sliding Friction: Crossing From Deformation to Plowing Contact

References

Figures

Mechanism of the interaction between a harder tool and a softer deformable metal: (a) the interaction of contact surfaces; (b) The transfer model of wear particle formation

The apparatus photograph and operating principle of the pin-on-disk tribometer: (a) FALEX ISC-200PC type pin-on-disk tribometer; (b) The operating principle of the pin-on-disk tribometer

Typical friction coefficient versus sliding distance curves

The wear track of pin on the disk

The variation of the friction coefficient with the shear factor, lubricant and indentor shape (v=500 mm/s,(Ra)disk=0.69 μm): (a) ball-shaped pin (d0=3.18 mm); (b) ball-shaped pin (d0=6.35 mm); and (c) ball-shaped pin (d0=12.70 mm). (From Komvopoulos et al. 19.)

Optical micrographs of the disk surface acted by (a) low and (b) high normal loads (Oil A,v=500 mm/s,d0=6.35 mm): (a) disk surface without waves or grooves (P=1.22 N); (b) Disk surface with waves (P=4.41 N)

The variation of the friction coefficient with the sliding speed and the apparent contact pressure at different lubricants for the ball-shaped pin (d0=3.18 mm): (a) oil A; (b) oil B; and (c) grease

The geometry of a cone-shaped pin and its contact situation with the disk: (a) pin geometry; and (b) pin head penetrating into the disk under the normal load of 0.98 N

The variation of the friction coefficient with the shear factor and indentor shape for Oil B (v=500 mm/s,(Ra)disk=0.69 μm)

Tables

Errata

Discussions

Related Content

Journals

Conference Proceedings

eBooks

The variation of the friction coefficient with the shear factor, lubricant and indentor shape (v=500 mm/s,(R_a)_disk=0.69 μm): (a) ball-shaped pin (d₀=3.18 mm); (b) ball-shaped pin (d₀=6.35 mm); and (c) ball-shaped pin (d₀=12.70 mm). (From Komvopoulos et al. 19.)

Optical micrographs of the disk surface acted by (a) low and (b) high normal loads (Oil A,v=500 mm/s,d₀=6.35 mm): (a) disk surface without waves or grooves (P=1.22 N); (b) Disk surface with waves (P=4.41 N)

The variation of the friction coefficient with the sliding speed and the apparent contact pressure at different lubricants for the ball-shaped pin (d₀=3.18 mm): (a) oil A; (b) oil B; and (c) grease

The variation of the friction coefficient with the shear factor and indentor shape for Oil B (v=500 mm/s,(R_a)_disk=0.69 μm)