A new method to investigate the sliding wear behaviour of materials based on energy dissipation: W–25wt%Cu composite

Jahangiri, Mehdi; Hashempour, Mazdak; Razavizadeh, H.; Rezaie, Hamid Reza

doi:10.1016/j.wear.2011.08.023

Cited by 43 publications

(17 citation statements)

References 49 publications

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“…Therefore, it is imperative to develop high performance copper-based composites to broaden their applications. So far, many attempts have been done to improve the mechanical and tribological properties of copper matrix by the means of filling various fillers [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], i.e. MoS 2 , MoSe 2 , SiC, Al 2 O 3 , TiO 2 , B 4 C, graphite, WS 2 , carbon fiber (CF), carbon nanotube (CNT) etc.…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of copper-based composites with copper coated NbSe2 and CNT

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Tribological properties of copper-based composites with copper coated NbSe2 and CNT

et al. 2015

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“…Similarly, as discussed earlier, a single average value of G c is used regardless of the type or size of debris particle. In spite of these simplifications, it will be seen that equation (13) does provide some useful insight into the mechanisms of wear for the materials tested here.…”

Section: Energy Model Developmentmentioning

confidence: 99%

“…Recently, a third category of models has emerged, where friction energy is used to predict the wear rates of multiphase materials. Jahangiri et al 13,14 proposed that the wear resistance of W-Cu alloy worn by steel pin may be correlated with the dissipation of energy by friction. Energy is dissipated when two surfaces move in relative motion and by definition is equal to the tangential force multiplied by the track distance motion:…”

Section: Introductionmentioning

confidence: 99%

An energy-based model for the wear of unidirectional carbon fiber reinforced epoxy

Cheng

Kortschot

2020

Journal of Composite Materials

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The wear resistance of unidirectional carbon fiber reinforced epoxy under severe abrasive sliding conditions was studied. It was found that unidirectional laminates tested with the fibers parallel to the sliding direction (UDp) were more wear resistant than the same laminates tested with fibers transverse to the sliding direction (UDap) under the same set of test conditions. A novel energy-based model was developed to explain the difference in the wear rates. It was found that the difference in wear rates between the two orientations was due to differences in the average volume to surface area ratio of the debris, the energy required to generate new surfaces, and a new k factor that represents the fraction of the total friction energy used for creating wear particles. Furthermore, wear volume per sliding distance was found to be linearly proportional the total frictional energy dissipation for both orientations. These findings can be used to simplify wear predictions for industrial applications.

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“…When W content increase, the resistance to wear and arc erosion will increase but the thermal and electrical conductivity will reduce due to Cu content decrease. W-Cu composites have good mechanical properties and high resistance to contact wear, welding, and melting at high currents and voltages [1,[3][4][5][6][7][8][9][10][11][12][13][14]. These superior properties recommend W-Cu composites as arcing contacts in medium and high voltage circuit breakers operating at high contact pressures in SF 6 gas or mineral oil.…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior of Arcing Contact Materials Based on Copper Infiltrated Tungsten Composites

Lungu

Enescu

Lucaci

et al. 2017

Proccedings of International Scientific Conference "BALTTRIB 2017"

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Tungsten copper composites with 70±3 wt.% W, maximum 1.5 wt.% Ni, and balance Cu were achieved as disks (diameter × height of 50×6 mm) by copper infiltration process of tungsten skeletons. Elemental analysis was assessed by WDXRF spectroscopy. Hydrostatic density was evaluated in ethanol. Vickers hardness and Young's modulus were determined in ambient air by instrumented indentation technique and Oliver&Pharr computation method. Tribological behavior was investigated under 30 N up to 400 m sliding distance and naphthenic mineral oil lubricant with a standard tribometer of ball-on-disk type. The results yielded highly dense materials with relative density over 96%, Vickers hardness (HV IT ) of 244…323, Young's modulus (E IT ) of 156…185 GPa, mean coefficient of friction of 0.11…0.22 and specific wear rate up to 8×10 -6 mm 3 /(Nm). The developed composites with low coefficient of friction and high wear resistance for use as arcing contacts in oil circuit breakers will endow high performance in service.

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A new method to investigate the sliding wear behaviour of materials based on energy dissipation: W–25wt%Cu composite

Cited by 43 publications

References 49 publications

Tribological properties of copper-based composites with copper coated NbSe2 and CNT

Tribological properties of copper-based composites with copper coated NbSe2 and CNT

An energy-based model for the wear of unidirectional carbon fiber reinforced epoxy

Tribological Behavior of Arcing Contact Materials Based on Copper Infiltrated Tungsten Composites

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