Morphology of polymer wear debris resulting from different contact conditions

Polymer wear debris particles undergo a thermal and mechanical (shear) cycle since their generation and therefore contain information on the friction and wear processes, while it is often difficult to draw quantitative data from them relating to transitions in tribological behaviour. Results from thermal DTA/TGA analysis and morphological pattern spectra of debris are presented and related to a transition at 180°C sliding temperatures own to hydrolysis and imidisation.

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Metal Trays in Tibial Components of Knee Implants; Contact Stress and Deflection Behaviour

10.1115/imece2001/bed-23090 ◽

2001 ◽

Author(s):

Tim McGloughlin

Keyword(s):

Molecular Weight ◽

Total Knee Replacement ◽

Wear Debris ◽

Survival Rates ◽

Wear Behaviour ◽

Term Survival ◽

Contact Conditions ◽

Total Knee ◽

Ultra High Molecular Weight

Abstract Wear behaviour of the Ultra High Molecular Weight Polyethylene (UHMWPE) insert in tibial components of total knee implants is believed to be influenced by the contact conditions occurring at the femoro-tibial interface. The wear debris which is generated in the vicinity of the implant is known to evoke undesirable effects and limits the long term survival rates of total knee replacement Mc Gloughlin et al [1].

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Influence of Steel Surface Preparation Method on Topography and Tribological Behaviour in Dry Sliding Conditions

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.674.265 ◽

2016 ◽

Vol 674 ◽

pp. 265-270 ◽

Cited By ~ 2

Author(s):

Andrzej Dzierwa

Keyword(s):

Wear Debris ◽

Steel Surface ◽

Preparation Method ◽

Tribological Behavior ◽

Surface Preparation ◽

Tribological Behaviour ◽

Contact Conditions ◽

Disc Surface ◽

Pin On Disc ◽

Steel Disc

Tribological tests were conducted using a pin-on-disc tester. In the experiment, a steel disc of hardness 40 HRC was put in contact with a steel ball of hardness 62 HRC. Disc samples were prepared in order to obtain very similar values of the Sa parameter, smaller than 0.5 μm. Different methods of preparing smooth surfaces were used. Dry tests using similar contact conditions were carried out. During tests, the friction force was monitored as a function of time. Wear of discs and balls was measured after the test using white light interferometer. In order to decrease variation of the experimental results, during tests the wear debris was continuously removed from the disc surface. It was shown that type of treatment play a role on tribological behavior of sliding pairs.

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An Experimental Study of Some of the Factors Affecting the Contact Conditions and the Slip between a Rolling Ball and Its Track

Proceedings of the Institution of Mechanical Engineers ◽

10.1243/pime_proc_1967_182_057_02 ◽

1967 ◽

Vol 182 (1) ◽

pp. 757-768 ◽

Cited By ~ 3

Author(s):

J. Hailing ◽

M. A. Al-Qishtaini

Keyword(s):

Experimental Study ◽

Surface Roughness ◽

Wear Debris ◽

Normal Load ◽

Operating Conditions ◽

Hydrodynamic Effect ◽

Contact Conditions ◽

Factors Affecting ◽

Rolling Ball ◽

Theoretical Considerations

The problem of a rolling ball subjected to combined normal load and tangential tractions has been studied for a variety of operating conditions. It is shown that for dry steady state loading the resultant slip may be explained in terms of a microslip theory based on the differential elastic straining of the ball and the track. Such results necessitate a careful experimental technique in which the surfaces must be free from contamination and loose wear debris. It is also shown that the preceding arguments are not significantly affected by dynamically varying loads or by speed variations in the range 0-150 in/min. The slip behaviour is found to be markedly affected by the presence of a lubricant. The behaviour with load and speed now indicates a definite hydrodynamic effect, although the theoretical film thickness is considerably less than the surface roughness. These results agree well with the results of other investigations for similar conditions. Using these experimental results and theoretical considerations a tentative power law formulation for the slip under such conditions is proposed.

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The evolution of polymer wear debris from total disc arthroplasty

Biotribology ◽

10.1016/j.biotri.2015.04.002 ◽

2015 ◽

Vol 1-2 ◽

pp. 42-50 ◽

Cited By ~ 11

Author(s):

D.G. Eckold ◽

K.D. Dearn ◽

D.E.T. Shepherd

Keyword(s):

Wear Debris ◽

Total Disc Arthroplasty ◽

Disc Arthroplasty ◽

Polymer Wear

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The effect of water lubrication on polymer wear under rolling contact conditions

Journal of Applied Polymer Science ◽

10.1002/app.1994.070540608 ◽

1994 ◽

Vol 54 (6) ◽

pp. 771-782 ◽

Cited By ~ 28

Author(s):

M. D. Lutton ◽

T. A. Stolarski

Keyword(s):

Rolling Contact ◽

Water Lubrication ◽

Contact Conditions ◽

Effect Of Water ◽

Polymer Wear

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Correlation of polymer wear-debris generation between microscratching and macroscopic wear

Tribology International ◽

10.1016/j.triboint.2015.09.010 ◽

2016 ◽

Vol 93 ◽

pp. 202-213 ◽

Cited By ~ 2

Author(s):

Yanyan Liu ◽

Shaoxian Song ◽

Heiko Timmers

Keyword(s):

Wear Debris ◽

Polymer Wear

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Wear of polymers

Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology ◽

10.1243/135065002762355325 ◽

2002 ◽

Vol 216 (6) ◽

pp. 401-413 ◽

Cited By ~ 101

Author(s):

B. J. Briscoe ◽

S. K. Sinha

Keyword(s):

Wear Mechanisms ◽

Sliding Wear ◽

Transfer Film ◽

Third Body ◽

Contact Conditions ◽

Material Parameters ◽

Sliding Surfaces ◽

The Third ◽

Polymer Wear ◽

Made In

This paper reviews some of the recent progress which has been made in the area of the sliding wear of polymers. Wear mechanisms are classified under three broad approaches which reflect primarily the way this subject has been historically studied. It is demonstrated here that the wear of polymers is influenced by the contact conditions, the bulk mechanical properties of the polymer and the properties of the ‘third body’, which generally appears in the form of transfer film or degraded polymer particles between two sliding surfaces. Further, this paper establishes a link between the different contact and material parameters and shows how they are important in elucidating the generic wear mechanisms for polymers. The effects of environment and lubrication upon polymer wear are briefly explained in terms of the chemical interactions between the liquid phase and the polymer. The capabilities and limitations of current predictive wear models for polymeric contacts are also highlighted.

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Third Body Effects in the Wear of Polyamide Materials

World Tribology Congress III, Volume 1 ◽

10.1115/wtc2005-63895 ◽

2005 ◽

Author(s):

L. Tortech ◽

A. Marcellan ◽

H. van Melick ◽

A. Chateauminois

Keyword(s):

Wear Resistance ◽

Wear Mechanisms ◽

Wear Debris ◽

Microstructural Properties ◽

Third Body ◽

Contact Conditions ◽

Body Formation ◽

Reciprocating Sliding ◽

Flow Processes

This study deals with the micro-wear mechanisms of polyamide materials under reciprocating sliding conditions. Using the resources of in situ contact visualisation through transparent sapphire counterfaces, third body formation and flow processes have been monitored as a function of the sliding amplitude. Under confined contact conditions, the stabilization of coherent third body compacts with distinct microstructural properties was found to have a profound effect on the displacement of wear debris from the contact and on the ultimate wear resistance of the polyamide materials.

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