Selected fretting-wear-resistant coatings for Ti-6%Al-4%V alloy

Bill, R. C.

doi:10.1016/0043-1648(85)90113-9

Cited by 61 publications

(21 citation statements)

References 3 publications

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“…This phenomenon is responsible for effectivity of a lubricant. In literature also conflicting evidences for their lubricating efficiency are reported [11,[13][14][15].…”

Section: Laow Wear Modementioning

confidence: 95%

Optimum concentration of reinforcement and solid lubricant in polyamide 12 composites for best tribo-performance in two wear modes

Bijwe¹,

Naidu²,

Bhatnagar

et al. 2006

Tribol Lett

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In general polymers are used in the form of composites (fiber reinforced, solid lubricated or both) in tribo-applications, where they may encounter more than one type of wear situations or mechanisms to different extents. The area of investigating the optimum concentration of fillers for best combination of tribo-performance in different wear modes and mechanical strength is sparingly researched. In this paper, research findings on the influence of the contents of short carbon fibers (CF) and PTFE (particulate form) in Polyamide (PA) 12 on friction and wear behavior in two wear modes (adhesive and fretting) have been reported. With increase in contents of CF up to 30% (vol) most of the mechanical properties and tribo-performance improved in adhesive and fretting wear modes. With a view to enhance it further, PTFE was added step by step in the best performing composite (PA+30% CF). This boosted the tribo-performance further, however, at the cost of strength properties. With increase in PTFE percentage (10, 15 and 20% by vol), specific wear rate (K o ) and friction coefficient (l) both decreased appreciably in adhesive as well as fretting wear modes. The composite consisting of 30% CF and 20% PTFE showed lowest values for l and K o rendering it the best tribo-combination for all practical purposes. The abrasive wear behavior of composites was also investigated. However, wear performance in this mode showed exactly opposite trends. Inclusion of fibers or combination of fibers and PTFE proved detrimental.

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“…This phenomenon is responsible for effectivity of a lubricant. In literature also conflicting evidences for their lubricating efficiency are reported [11,[13][14][15].…”

Section: Laow Wear Modementioning

confidence: 95%

Optimum concentration of reinforcement and solid lubricant in polyamide 12 composites for best tribo-performance in two wear modes

Bijwe¹,

Naidu²,

Bhatnagar

et al. 2006

Tribol Lett

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“…Høyer et al [12] said that the addition of various metal sulfide solid lubricants led to much larger variation in the friction and wear behavior of resin-based automotive disc brakes. Surprisingly, as one of the most widely used traditional solid lubricants, though MoS 2 has been found to considerably improve the friction and wear behaviors of various bonded solid lubricating coatings, it has detrimental effect on the wear resistance of some composites, due to the oxidation of MoS 2 to MoO 3 in air [13][14][15][16]. Enlightened by this observation, we anticipate that many other laminar inorganic particulates such as low cost calcined petroleum coke (CPC), which is mainly comprised of graphite particles and amorphous carbon, heat-resistant hexagonal boron nitride (h-BN), and talcum powder (TP) would also have complicated effects on the tribological properties of phenolic resin-based friction composites.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and tribological properties of phenolic resin-based friction composites filled with several inorganic fillers

Yan

2007

Wear

101

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“…Such cases arise in bearings, gears, bushes, multi-layer leaf springs, palliatives, bolted, riveted and pinned joints, bearing liners, spline couplings, gripped components, flanges, seals etc. [4,5]. Fretting also contributes to a significant extent in the total wearing mechanisms, though its extent of contribution depends on the operating conditions of the component.…”

Section: Introductionmentioning

confidence: 98%

Influence of content of carbon fabric on the low amplitude oscillating wear performance of polyetherimide composites

Bijwe

Rattan

2006

Tribol Lett

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Tribo-potential of bi-directionally (BD) reinforced polymer composites is not yet adequately explored especially in low amplitude oscillating wear (LAOW)/fretting wear mode. Hence five composites of Polyetherimide (PEI) containing carbon fabric (plain weave) in the range 40-85 by vol% were developed by impregnation technique followed by compression molding. These composites along with unfilled PEI were evaluated for their LAOW performance on SRV Optimol tester under different loads using ball-on-plate configuration. The performance was compared with that of composite evaluated in earlier work but developed with different processing technique (hand lay up). With increase in load, specific wear rates of all the composites increased while friction coefficient (l) decreased. It was concluded that carbon fabric inclusion in all amounts proved significantly beneficial for improving friction and wear performance and limiting load of PEI. Very high and very low amount of CF (85 and 40 vol%) proved least beneficial from strength and tribo-performance point of view. Composites with moderate amount of CF (65 and 55 vol%) proved most promising with almost similar potential in reducing l and wear rate of PEI. Overall CF in the range of 55-65 vol% appeared to be the optimum range for tailoring the strength properties along with tribo-performance in fretting wear mode. The impregnation technique proved significantly better than the hand lay up technique for enhancement in strength and triboperformance. SEM studies on worn surface proved helpful in understanding wear mechanisms.

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Selected fretting-wear-resistant coatings for Ti-6%Al-4%V alloy

Cited by 61 publications

References 3 publications

Optimum concentration of reinforcement and solid lubricant in polyamide 12 composites for best tribo-performance in two wear modes

Optimum concentration of reinforcement and solid lubricant in polyamide 12 composites for best tribo-performance in two wear modes

Mechanical and tribological properties of phenolic resin-based friction composites filled with several inorganic fillers

Influence of content of carbon fabric on the low amplitude oscillating wear performance of polyetherimide composites

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