A study of the mechanisms of abrasive wear for ductile metals under wet and dry three-body conditions

Bingley, M.S.; Schnee, S.

doi:10.1016/j.wear.2004.01.022

Cited by 48 publications

(25 citation statements)

References 14 publications

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“…5f and 5g that a large number of small SLD abrasive particles exist in the contact surface, and these micro-/nanoparticles can roll freely to reduce friction ( Fig. 31 This coincides with a change in wear mechanism from a three-body rolling process at the light load to a two-body cutting-type process at the heavy load. However, when the load is up to the maximum value of 10 N ( Fig.…”

Section: General Characterizationmentioning

confidence: 69%

A feasible multilayer structure design for solid lubricant coatings in a lunar environment

Ren

et al. 2016

RSC Adv.

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Solid lubricant coatings have received considerable research attention in the space applications owing to their remarkably improved tribological characteristics.But their service life is seriously restricted by the harsh environment, such as high vacuum and abrasive wear. In this paper, a novel design of carbon-based multilayer (MoS 2 /DLC multilayer) coatings was reported to clarify the friction and wear behaviors in high vacuum condition with and without simulated lunar-dust (SLD). Compared with pure DLC or MoS 2 coatings, the multilayer coating showed excellent tribological performance with the low friction coefficient of 0.02 and the wear rate of ~6.5×10 -6 mm 3 /N•m. What is particularly interesting is that the wear volume of MoS 2 /DLC multilayer coatings with the increase of time is in accord with the Archard linear law, regardless of the condition with or without SLD. Moreover, the surface morphology and composition of wear tracks and scars reveal that the long life of * carbon-based multilayer coatings cannot be explained solely by excellent mechanical performance, is also attributed to the formation of ridge layer as third body reservoirs and tribo-induced a composite transfer layer containing SLD nanoparticles and coating materials. IntroductionMany space-born systems involve relative motion of contacting surfaces, whose reliability is severely limited by the degradation of lubricants and excessive wear from lunar-dust. In NASA's reports, "Dust is the number one environmental problem on the moon", the dust on the lunar surface posed a surprisingly broad array of difficulties in moon probe program, such as vision obscuration, equipment clogging, radiator performance degradation, seals failing, and abrasive wear, whereas abrasive wear was mainly destruction of solid particles. 1,2 Consequently, a specific task has been set up under the exploration program to deal with the effects of lunar dust on surface wear.The tribological properties of solid lubricants such as graphite and the transition metal dichalcogenides (TMD-sulfides, selenides or tellurides of tungsten, molybdenum and niobium) are of technological interest for reducing friction in circumstances where liquid lubricants are impractical, such as in space. [3][4][5][6][7][8][9] Unfortunately, the tribological performance and lifetime of these flexible coatings under high vacuum condition with lunar-dust have greatly limited by the mechanical damage from the angular and sharp particles. Currently, diamond-like carbon (DLC) coatings are often referenced as potential candidates for space application due to their high load bearing capability, good adhesive strength, and excellent tribological properties. [10][11][12][13][14][15][16][17][18][19][20] In the pioneering work of Enke et al., hydrogenated DLC coating sliding against steel could provide much lower friction coefficient of 0.005-0.02 in a vacuum or an inert atmosphere (dry N 2 or dry Ar). 10 Carpick et al. revealed the passivation machanism of low friction and wear of ultrananocrystalline diam...

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Section: General Characterizationmentioning

confidence: 69%

A feasible multilayer structure design for solid lubricant coatings in a lunar environment

Ren

et al. 2016

RSC Adv.

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“…The mechanism of wear is in general very complex mainly due to the number of contributing factors to material removal [19][20][21][22][23][24]. The complexity and prediction of wear to be encountered in any system is increased as in actual conditions under any mode of wear, the real area of contact between two solid surfaces compared with the apparent area of contact is invariably very small, being limited to points of contact between surface asperities.…”

Section: Discussionmentioning

confidence: 99%

Aluminium Alloy-Based Metal Matrix Composites: A Potential Material for Wear Resistant Applications

Dasgupta

2012

ISRN Metallurgy

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Aluminium alloy-based metal matrix composites (AMMCs) have been by now established themselves as a suitable wear resistant material especially for sliding wear applications. However, in actual practice engineering components usually encounter combination of wear types. An attempt has been made in the present paper to highlight the effect of dispersing SiC in 2014 base alloy adopting the liquid metallurgy route on different wear modes like sliding, abrasion, erosion, and combinations of wear modes like cavitation erosion, erosion abrasion, sliding abrasion, and the results obtained compared with the base alloy. It is found that there are a number of contributing factors for the resulting wear and all are not necessarily derogatory in nature. The limits within which the AMMCs can exhibit superior performance over the base alloy have been discussed. Worn surface and subsurface studies have been carried out to understand the mechanism of material removal and the role of the different contributing factors to material removal. Wear mechanisms that have been prevalent have been suggested and the possibility of making wear resistant components from the MMCs is discussed based on the experimental results obtained.

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“…1.5 J), the wear characteristics is mainly based on the shallow ploughing [11]. For the HCWI, the hard phase is M 7 C 3 carbides, and the soft phase is martensite matrix, when the impact energy is low, the abrasive particles were squeezed into the softer martensite matrix at low contact pressure, the depth of indentation is shallow, and then the ploughing wear occurred on the matrix under the action of tangential stress [12,13], the ploughing is shallow and the wear loss is small. In addition, the plastic deformation is also observed on the worn surface, which caused by the existence of retained austenite in the matrix.…”

Section: Analysis Of Worn Surface Of Wear Samplesmentioning

confidence: 99%

Effect of impact energy on wear behavior of high chromium white iron produced by liquid die forging

et al. 2018

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Impact abrasive wear behavior of high chromium white iron (HCWI) produced by liquid die forging process were investigated. the wear tests were performed with the MLD-10 abrasive wear testing machine, using SiO2 abrasive and with four impact energies of 1.5 J, 2.5 J, 3.5 J and 4.5 J for 120 min. The results indicated that the cumulative volume loss of HCWI sample increases with the growth of impact energy, and exhibits best wear resistance under low impact condition. For given impact energy, the volume loss increases with the increasing of wear time, which shown an approximately liner tendency. The macro-morphologies, SEM images of worn surface and cross-sectional images of wear samples were observed by optical microscope and SEM, and the wear mechanism and characteristics were analyzed. Results shown that the wear characteristics is mainly based on the shallow ploughing and accompanied by plastic deformation under lower impact energy, while the fatigue peeling and embedded abrasive become the most significant characteristics when the impact energy is higher.

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A study of the mechanisms of abrasive wear for ductile metals under wet and dry three-body conditions

Cited by 48 publications

References 14 publications

A feasible multilayer structure design for solid lubricant coatings in a lunar environment

A feasible multilayer structure design for solid lubricant coatings in a lunar environment

Aluminium Alloy-Based Metal Matrix Composites: A Potential Material for Wear Resistant Applications

Effect of impact energy on wear behavior of high chromium white iron produced by liquid die forging

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