General regularities of wear in vacuum for solid film lubricants formulated with lamellar materials

Gamulya, G.D.; Dobrovol'skaya, G. V.; Lebedeva, I.L.; Yukhno, T.P.

doi:10.1016/0043-1648(84)90205-9

Cited by 21 publications

(6 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rapid wear takes place in Stage II, often within the first 10% of sliding life and results in loss of 50% or more of the initial coating thickness. Such early wear is similar to that of other MoS 2 coatings in both sliding [4,5,[27][28][29] and rolling contact [30]. In Stage III, the net wear of the coating is low, due to resupply of MoS 2 to the contact via lubricant reservoir dynamics.…”

Section: Introductionmentioning

confidence: 57%

Effects of ion implantation on microstructure, endurance and wear behavior of IBAD MoS2

Wahl

Dunn

Singer

2000

Wear

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 57%

Effects of ion implantation on microstructure, endurance and wear behavior of IBAD MoS2

Wahl

Dunn

Singer

2000

Wear

View full text Add to dashboard Cite

“…low friction coefficient in terms of the plasticity/shear strength), the high endurance has never been accounted for. Furthermore, while MoS 2 provides endurant sliding, it is well known that most of the coating is lost early in life, both in sliding [2,3,4,5] and rolling [6]. How, then, does the remaining lubricant sustain sliding?…”

mentioning

confidence: 99%

Quantification of a lubricant transfer process that enhances the sliding life of a MoS2 coating

Wahl

Singer

1995

Tribol Lett

View full text Add to dashboard Cite

A lubricant transfer process that enhanced the wear life of a MoS 2 coating has been identified and quantified. A steel ball sliding against a coated steel flat in reciprocating motion produced reservoirs at the turnaround part of the track ends, then emptied them, to provide replenishment similar to what is expected of liquid lubricants. The dynamics of the process were inferred from measurements of material loss and/or buildup in the track and on the ball; measurements were performed with Michelson interferometry and energy dispersive x-ray spectroscopy. MoS 2 is a remarkable solid lubricant. It produces some of the lowest friction coefficients ever measured [1], and it can be used to lubricate sliding contacts at high contact stresses (on the order of GPa) even though its shear strength is only ~25 MPa. In addition, thin coatings of MoS 2 can withstand hundreds of thousands of sliding cycles, having overall wear rates <<1 nm/cycle. Although some of its behavior can be explained in terms of the bulk mechanical properties of MoS 2 (e.g. low friction coefficient in terms of the plasticity/shear strength), the high endurance has never been accounted for. Furthermore, while MoS 2 provides endurant sliding, it is well known that most of the coating is lost early in life, both in sliding [2,3,4,5] and rolling [6]. How, then, does the remaining lubricant sustain sliding?We began this study to learn how a coating, worn heavily early in sliding, was able to endure the remaining 90% of sliding life [7]. But our investigation led to the recognition that the endurance was influenced not only by the coating wear rate but also by a lubricant replenishment process. This

show abstract

“…[1][2][3][4][5][6] As a method of applying solid lubricating films, bonded solid lubricating films have excellent anti-friction and wearresistant performances, and are commonly used to solve tribological problems, and especially the problem of lubrication in applications where fluid lubricants are ineffective and undesirable. [7][8][9][10][11] The anti-friction and wear-resistant performances, corrosion-resistant performance are the most important parameter of the bonded MoS 2 solid lubricating film. Three different bonded solid lubricating films (a bonded MoS 2 solid lubricating film, a bonded graphite solid lubricating film and a bonded PTFE solid lubricating film) are commonly regarded as the most typical solid lubricating films in industries, thereinto the bonded MoS 2 solid lubricating film has the highest load-carrying capability with a corresponding low coefficient of friction in three solid lubricating films, [5,10] and wins the widest application in industries.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Tribological Behavior, and Corrosion-Resistant Performance of Bonded MoS₂Solid Lubricating Film Filled with Nano-LaF₃

Chen

Zhou

2009

Journal of Dispersion Science and Technology

View full text Add to dashboard Cite

The anti-friction and wear-resistant performances of bonded MoS 2 solid lubricating films filled with nano-LaF 3 filler were investigated under in drying wear conditions, the corrosion-resistant performances of bonded lubricating films was evaluated according to ASTM-B117, and the characteristics of the bonded lubricating films were examined by TEM and elemental x-ray map. The wear-resistant performance of the bonded lubricating films filled with nano-LaF 3 filler increases with increasing content of nano-LaF 3 filler within a content range between 0 and 5 wt%, whereas the bonded lubricating films filled with 0.5-1 wt% micro-LaF 3 filler exhibit the better wear-resistant performances. The incorporation of both nano-LaF 3 and micro-LaF 3 filler leads the increase of the coefficient of friction of the bonded lubricating films. The LaF 3 filler can improve the corrosion-resistant performance of the bonded MoS 2 solid lubricating films, whereas the incorporation of nano-LaF 3 filler is more effective to improve the corrosion-resistant performance of the bonded lubricating films than micro-LaF 3 filler. The improvement in the wear-resistant and corrosion-resistant performances of the bonded lubricating films by the incorporation of the nano-LaF 3 filler is attributed to the strengthened interfacial bonding among the nano-LaF 3 and the MoS 2 lubricant and the polymeric matrix. However, a too high mass fraction of the nano-LaF 3 filler in the bonded lubricating films will increase surface and interface defects, and lead the worsening of corrosion-resistant performance of the bonded lubricating films.

show abstract

General regularities of wear in vacuum for solid film lubricants formulated with lamellar materials

Cited by 21 publications

References 7 publications

Effects of ion implantation on microstructure, endurance and wear behavior of IBAD MoS2

Effects of ion implantation on microstructure, endurance and wear behavior of IBAD MoS2

Quantification of a lubricant transfer process that enhances the sliding life of a MoS2 coating

Microstructure, Tribological Behavior, and Corrosion-Resistant Performance of Bonded MoS₂Solid Lubricating Film Filled with Nano-LaF₃

Contact Info

Product

Resources

About

General regularities of wear in vacuum for solid film lubricants formulated with lamellar materials

Cited by 21 publications

References 7 publications

Effects of ion implantation on microstructure, endurance and wear behavior of IBAD MoS2

Effects of ion implantation on microstructure, endurance and wear behavior of IBAD MoS2

Quantification of a lubricant transfer process that enhances the sliding life of a MoS2 coating

Microstructure, Tribological Behavior, and Corrosion-Resistant Performance of Bonded MoS2Solid Lubricating Film Filled with Nano-LaF3

Contact Info

Product

Resources

About

Microstructure, Tribological Behavior, and Corrosion-Resistant Performance of Bonded MoS₂Solid Lubricating Film Filled with Nano-LaF₃