The influence of initial roughness and circular axial run-out on friction and wear behavior of Si3N4–Al2O3 sliding in water

Balarini, Roberto; Strey, Nathan Fantecelle; Sinatora, Amilton; Scandian, Chérlio

doi:10.1016/j.triboint.2016.04.005

Cited by 21 publications

(11 citation statements)

References 21 publications

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“…Although colloidal SiO2 could develop in fresh water, it could be easily removed by the water surrounding it, so SiO2 gel deposited would be too thin to function as an effective lubricant for the interface. XPS results presented in Figures 8 and 9 indicate that the SiO2 generated after the tribochemical reaction could continue staying to function as a good boundary lubricant, contributing In addition, it had been reported that the SiO 2 formed via the tribochemical reaction could be accumulated and aggregated into a SiO 2 gel deposited on the grinding interface when either SiC or Si 3 N 4 was involved in grinding in aqueous condition [7,35]. The SiO 2 gel proper could be an excellent lubricant, so friction and wear were lowed.…”

Section: Characterization Of Seawater Lubricationmentioning

confidence: 95%

“…This might help to explain why the friction coefficient and wear rate of the SN10/GCr15 tribopair were lower in seawater and higher in fresh water. In addition, it had been reported that the SiO2 formed via the tribochemical reaction could be accumulated and aggregated into a SiO2 gel deposited on the grinding interface when either SiC or Si3N4 was involved in grinding in aqueous condition [7,35]. The SiO2 gel proper could be an excellent lubricant, so friction and wear were lowed.…”

Section: Characterization Of Seawater Lubricationmentioning

confidence: 99%

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Tribological Properties of Si3N4-hBN Composite Ceramics Bearing on GCr15 under Seawater Lubrication

et al. 2020

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This paper concerns a comparative study on the tribological properties of Si3N4-10 vol% hBN bearing on GCr15 steel under seawater lubrication and dry friction and fresh-water lubrication by using a pin-on-disc tribometer. The results showed that the lower friction coefficient (around 0.03) and wear rate (10−6 mm/Nm) of SN10/GCr15 tribopair were obtained under seawater condition. This might be caused by the comprehensive effects of hydrodynamics and boundary lubrication of surface films formed after the tribo-chemical reaction. Despite SN10/GCr15 tribopair having 0.07 friction coefficient in the pure-water environment, the wear mechanismsits were dominated by the adhesive wear and abrasive wear under the dry friction conditions, and delamination, plowing, and plastic deformation occured on the worn surface. The X-ray photoelectron spectroscopy analysis indicated that the products formed after tribo-chemaical reaction were Fe2O3, SiO2, and B2O3 and small amounts of salts from the seawater, and it was these deposits on the worn surface under seawater lubrication conditions that, served to lubricate and protect the wear surface.

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Section: Characterization Of Seawater Lubricationmentioning

confidence: 95%

Section: Characterization Of Seawater Lubricationmentioning

confidence: 99%

Tribological Properties of Si3N4-hBN Composite Ceramics Bearing on GCr15 under Seawater Lubrication

et al. 2020

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“…Furthermore, Balarini et al. 18 researched the influence of initial roughness and circular axial run-out on the friction and wear behavior of Si 3 N 4 /Al 2 O 3 tribopair sliding under water lubrication. It was found that greater initial surface roughness and circular axial run-out resulted in greater running-in duration and wear.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of initial surface roughness on friction and wear behaviors of Si 3 N 4 /Si 3 N 4 and SiC/SiC was also investigated, [15][16][17] and the results showed that the initial surface roughness was indeed connected with the friction coefficient. Furthermore, Balarini et al 18 researched the influence of initial roughness and circular axial run-out on the friction and wear behavior of Si 3 N 4 /Al 2 O 3 tribopair sliding under water lubrication. It was found that greater initial surface roughness and circular axial run-out resulted in greater running-in duration and wear.…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior of various ceramic materials sliding against CF/PTFE/graphite-filled PEEK under seawater lubrication

Yin

Nie

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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In order to select appropriate antifriction and wear resistance material combinations for key frictional pairs in seawater hydraulic components, tribological characteristics of SiC, Si3N4, Al2O3, and ZrO2 ceramics sliding against carbon fiber/polytetrafluoroethylene/graphite-filled polyetheretherketone composite lubricated with seawater were comparatively investigated with a ring-on-ring test rig. The results show that the nonoxide ceramics (Si3N4 and SiC), especially the Si3N4 ceramic, exhibited lower friction coefficients and smaller wear rates than those of oxide ceramics (Al2O3 and ZrO2). And the tribological behaviors of polyetheretherketone/Si3N4 tribopair under dry friction, pure water, and seawater lubrications are further comparatively studied to explore the effect of lubricating medium on the tribological characteristics of Si3N4 ceramic. It is found that the lubricating effect of SiO2 and Si(OH)4 films generated by tribo-chemical reaction between Si3N4 and water is the main factor for the relatively low friction coefficient and wear rate of polyetheretherketone/Si3N4 tribopair under aqueous lubrication. Under seawater lubrication, the Mg(OH)2 and CaCO3 deposition layers caused by the chemical reaction of Mg2+ and Ca2+ in seawater could inhibit the generation of SiO2 and Si(OH)4 films and increase the counterface roughness. As a result, the tribological behaviors of polyetheretherketone/Si3N4 tribopair are worse under seawater lubrication than that of pure water lubrication.

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“…Also, other scholars further investigated the influence of sliding speed and surface roughness on the tribological properties of Si 3 N 4 /Si 3 N 4 pairs in pure water, and found that the chemical wear ratio was related to sliding speed, but independent of roughness (Saito et al, 2001). Meanwhile, when Si 3 N 4 slid against Al 2 O 3 , the wear mechanism was transferred from mechanical wear to tribochemical wear with the increase of sliding time (Balarini et al, 2016). As described above, for silicon nitride sliding pairs, lower friction coefficients and wear rated were obtained under water lubrication.…”

Section: Introductionmentioning

confidence: 99%

Wear in Silicon Nitride Sliding Against Titanium Alloy Pairs at Different Loads Under Artificial Seawater Lubrication

et al. 2019

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Tribological behaviors of Si 3 N 4 ceramic sliding against titanium alloy at different normal loads under seawater lubricated conditions are investigated on a pin-on-disc tester. Generally, for Si 3 N 4 /titanium alloy pair, the friction coefficient increases from 0.43 to 0.67 with load increasing (from 10 to 30 N). Correspondingly, the wear rate is in the consistent case. When Si 3 N 4 slides against titanium alloy, the wear mechanism is dominated by mechanical wear even though under seawater lubrication. With load increasing, the shear force of solid shear (τ s × A r) and furrow drag S × P e S × P e aggravated, which should be responsible for the rising trend of friction coefficient and wear rate.

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The influence of initial roughness and circular axial run-out on friction and wear behavior of Si3N4–Al2O3 sliding in water

Cited by 21 publications

References 21 publications

Tribological Properties of Si3N4-hBN Composite Ceramics Bearing on GCr15 under Seawater Lubrication

Tribological Properties of Si3N4-hBN Composite Ceramics Bearing on GCr15 under Seawater Lubrication

Tribological behavior of various ceramic materials sliding against CF/PTFE/graphite-filled PEEK under seawater lubrication

Wear in Silicon Nitride Sliding Against Titanium Alloy Pairs at Different Loads Under Artificial Seawater Lubrication

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