Three-body abrasive wear of composite coatings in dry and wet environments

Deuis, R.L.; Subramanian, C.; Yellup, J. M.

doi:10.1016/s0043-1648(97)00197-x

Cited by 48 publications

(16 citation statements)

References 26 publications

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“…3b). As previously described by Deuis et al [14], abrasive sands can enhance the wear resistance of materials by way of forming a tribolayer on contact surfaces. It was proved in Section 3.2 that abrasive particles can be embedded in the specimen surfaces of PTFE with low hardness and then the tribolayer was formed under the load, which results in the better wear performance of PTFE under sand-dust conditions.…”

Section: Effect Of Sand-dust On the Tribological Behaviors Of Ptfe Anmentioning

confidence: 78%

A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions

Yan

2009

Wear

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Section: Effect Of Sand-dust On the Tribological Behaviors Of Ptfe Anmentioning

confidence: 78%

A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions

Yan

2009

Wear

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“…Preferential removal of the matrix results in the reinforcement particles protruding from the surface after some sliding distance. These particles bear most of the load, leading to higher wear resistance [35,36].…”

Section: Discussionmentioning

confidence: 99%

Microstructure and wear studies of laser clad Al-Si/SiC(p) composite coatings

Anandkumar

Almeida

Colaço

et al. 2007

Surface and Coatings Technology

110

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Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. and Si increase the hardness of the material by dispersion hardening but do not contribute to its abrasive wear resistance, because they are softer than the abrasive particles, and confirm that the parameters used to prepare Al-Si-SiC composite coatings by laser cladding must be selected so that only minimal reactions occur between SiC and molten Al.

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“…Figure 5 shows the SEM images of the worn surfaces of the three polymers under sand-dust conditions at 100 N and 250 N. The tribolayer was observed on all the worn surfaces of PTFE and UHMWPE (Fig. 5a-d), which has been testified to be composed of the plastically deformed matrix material, abrasive fragments, and debris [16]. The tribolayer formed on the sliding surfaces greatly improved the surface mechanical properties and hence enhanced the wear resistance of polymers.…”

Section: Microscopy and Characterizationmentioning

confidence: 98%

Effect of Blowing Air and Floating Sand-dust Particles on the Friction and Wear Behavior of PTFE, UHMWPE and PI

Yan

2008

Tribol Lett

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The friction and wear behaviors of polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene (UHMWPE), and polyimide (PI) have been comparatively evaluated under dry sliding, blowing air, and simulated sand-dust conditions. The tribological tests were conducted on an improved block-on-ring test rig equipped with an attachment for simulating the sand-dust environment. The reason for the difference in the tribological behavior of these polymers under the three test conditions was also comparatively discussed, based on scanning electron microscopic examination of the worn polymer specimens and counterfaces. Under blowing air conditions, the decrease of the contact temperature produced by blowing air led to the increase in the shearing strength of the sliding surface when compared with dry sliding conditions and hence to cause an increase in the friction coefficient and a remarkable decrease in the wear rate of PTFE and UHMWPE. On the contrary, blowing air produced a decrease in the friction coefficient of PI because of the formation of transfer film on the counterfaces, and an increase in the wear rate, because the blowing air considerably promoted the transfer of PI onto the counterfaces when compared with dry sliding conditions. Both PTFE and UHMWPE registered the lowest wear rate under sanddust conditions, owing to the tribolayer formation on the worn surfaces, while PI exhibited the highest wear rate because no tribolayer was formed during the abrasive wear process.

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Three-body abrasive wear of composite coatings in dry and wet environments

Cited by 48 publications

References 26 publications

A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions

A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions

Microstructure and wear studies of laser clad Al-Si/SiC(p) composite coatings

Effect of Blowing Air and Floating Sand-dust Particles on the Friction and Wear Behavior of PTFE, UHMWPE and PI

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