scholarly journals Effect of load, area of contact and contact stress on the wear mechanisms of a bonded solid lubricant film

Wear ◽  
1982 ◽  
Vol 75 (2) ◽  
pp. 403-422 ◽  
Author(s):  
Robert L. Fusaro
Keyword(s):  
Contact Stress ◽  
Wear Mechanisms ◽  
Solid Lubricant ◽  
Lubricant Film

Tribological characteristics of MoS2–Nb solid lubricant film in different tribo-test conditions

2008 ◽  
Vol 203 (5-7) ◽  
pp. 766-770 ◽  
Author(s):  
Ihsan Efeoglu ◽  
Özlem Baran ◽  
Fatih Yetim ◽  
Sabri Altıntaş
Keyword(s):  
Solid Lubricant ◽  
Lubricant Film ◽  
Tribological Characteristics ◽  
Test Conditions

108 Effect of solid lubricant film on fretting fatigue characteristic of aluminum alloy (JIS A7N01)

2008 ◽  
Vol 2008.57 (0) ◽  
pp. 15-16
Author(s):  
Tomohisa NISHIDA ◽  
Junnosuke MIZUTANI ◽  
Masahiko Satoh ◽  
Yoshiharu MUTOH ◽  
Masahiro KAWAMURA ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Solid Lubricant ◽  
Fretting Fatigue ◽  
Lubricant Film ◽  
Fatigue Characteristic

Thermal Stress Analysis of Lubricating Wear-Resisting Coating Prepared by Supersonic Plasma Spraying in the High-Heat Tribological Process

2011 ◽  
Vol 80-81 ◽  
pp. 667-672
Author(s):  
Yun Cai Zhao ◽  
Gao Jie Hao ◽  
Chun Ming Deng ◽  
Wem You Ma
Keyword(s):  
Thermal Stress ◽  
Friction Coefficient ◽  
Wear Rate ◽  
Plasma Spraying ◽  
Direct Contact ◽  
Solid Lubricant ◽  
High Heat ◽  
Process Research ◽  
Lubricant Film ◽  
Supersonic Plasma

This paper is about the study of the KF301/WS2 composite lubricating wear-resisting coatings prepared by supersonic plasma spraying. Basing on the research of the tribological characteristics, it has been discussed that the thermal stress of lubricating wear-resisting coating prepared by supersonic plasma spraying in the high-heat tribological process. Research shows that the wear rate of the coating increases with the increase of the temperature. At 300°C, the wear rate is 1.02×10-4mg/m; At 750°C, the wear rate is 2.61×10-4 mg/m. With the increase of temperature, friction coefficient of the coatings shows gradually increasing. When the temperature falls below 600°C, friction coefficient keeps around 0.08; At 750°C, the friction coefficient is 0.12. The thermal stress σ1max mainly is controlled by temperature, with the increase of temperature, the warping phenomena of solid lubricant film and the combined effects of heat stress and friction contact stress, which causes the insecure combination of the lubricant film and substrate, lubricant film’s warp, break, local direct contact between the metals, which is one of reasons to lead to decrease of the tribological properties of self-lubricating composite coating.

Secondary structure formation and wear mechanisms for solid lubricant coatings under friction in vacuum

Wear ◽  
1994 ◽  
Vol 171 (1-2) ◽  
pp. 143-148 ◽  
Author(s):  
G.D. Gamulya ◽  
I.L. Lebedeva ◽  
Yu.V. Vvedensky ◽  
T.P. Yukhno
Keyword(s):  
Secondary Structure ◽  
Structure Formation ◽  
Wear Mechanisms ◽  
Solid Lubricant ◽  
Secondary Structure Formation

Estimation of Contact Interface between Tool and Workpiece in Cold Forming Using FEM Analysis

2007 ◽  
Vol 539-543 ◽  
pp. 2275-2280
Author(s):  
Hiroyuki Saiki ◽  
Yasuo Marumo ◽  
Li Qun Ruan ◽  
Junpei Kozasa
Keyword(s):  
Flow Stress ◽  
Friction Coefficient ◽  
Solid Lubricant ◽  
Fem Analysis ◽  
Lubricant Film ◽  
Cold Forging ◽  
Contact Interface ◽  
Rigid Plastic ◽  
Cold Forming ◽  
Minimum Film Thickness

The effect of the flow stress of solid lubricant for cold forging on the tribological conditions was investigated using a rigid-plastic finite element method. The thickness of lubricant film decreases with decreasing flow stress of the solid lubricant and then decreases rapidly. The apparent friction coefficient also decreases with the decrease in the flow stress of the solid lubricant. The thickness of lubricant film tends to decrease with decreasing friction shear factor. When flow stress of solid lubricant is low, the thickness of lubricant film decreases remarkably with increasing tool stroke. We can observe a good correlation between the flow stress of solid lubricant, friction shear factor, minimum film thickness and apparent friction coefficient.

On the Indentation of a Transversely Isotropic Half-Space With Application to Thin Solid Lubricant Films

1993 ◽  
Vol 115 (4) ◽  
pp. 650-657 ◽  
Author(s):  
T. C. Ovaert
Keyword(s):  
Half Space ◽  
Elastic Constants ◽  
Solid Lubricant ◽  
Transversely Isotropic ◽  
Solid Lubricants ◽  
Lubricant Film ◽  
Contact Patch ◽  
Lubricant Films ◽  
Solid Lubricant Films ◽  
Plane Of Isotropy

In this investigation, the contact between a model rigid ellipsoidal asperity and the surface of an oriented solid lubricant film has been simulated using an analysis developed previously for contact of a transversely isotropic half-space. In this case, unlike most previous work, the plane of isotropy is oriented normal to the plane of contact, instead of parallel. Under this condition, the contact patch is of a general elliptical form, depending on the shape and orientation of the model asperity and on the elastic constants of the solid lubricants. Several applicable material compositions are examined using the analysis, and the influence of asperity shape and elastic constants in relation to friction and potential design of solid lubricant formulations is discussed.

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