Cavitation and rolling wear in silicon nitride

Karunamurthy, Balamurugan; Hadfield, M.; Vieillard, Charlotte; Morales-Espejel, Guillermo E.; Khan, Zulfiqar Ahmad

doi:10.1016/j.ceramint.2010.02.011

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…But, in the specialized literature, cavitation erosion behavior of plasma nitrided niobium has not been studied. Despite that significant research works have been done on the cavitation behavior of pure metals and metallic alloys, a much lesser degree of published works has studied the behavior of engineering ceramics [6][7][8][9][10][11][12][13] . Plasma nitriding technique was used here in order to obtain niobium nitride (ceramic-like material) surfaces formed in pure niobium substrates.…”

Section: First Results Of Cavitation Erosion Behavior Of Plasma Nitrimentioning

confidence: 99%

“…But, as it will be discussed hereafter, the main difference in this case is that the ceramic phase, supposedly formed at the substrate surface, comprises a nitrided layer obtained by nitrogen diffusion into a metallic bulk of the niobium substrate. So, the system 'surface + bulk' to be considered in this work would be formed by 'ceramic layer + metallic bulk', thus differing from those 'ceramic surface + ceramic bulk' as previously shown in references [6][7][8][9][10][11] .…”

Section: Cavitation Erosion Behavior Of Structural Ceramicsmentioning

confidence: 99%

“…It was also observed by studying different ceramic materials that the possibility of exploring compressive stresses in surface layers would be an interesting prospect to improve the incubation period 6 . As presented in 8 , silicon nitride and zirconia has been reported as the technical ceramics with the best cavitation erosion resistance in the literature [6][7][8] , comprising the main subject for studies aiming to improve the performance of bearings, injectors or valves submitted to cavitation problem in real and different operating conditions, such as those verified in rocket engines 8,10,11 . Karunamurthy et al have also shown that cracking in cavitation eroded silicon nitride is preferentially intergranular, leading erosion pits to be produced.…”

Section: Cavitation Erosion Behavior Of Structural Ceramicsmentioning

confidence: 99%

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First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

et al. 2015

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This work presents the first results of the plasma nitriding study performed in pure niobium in order to increase its cavitation erosion resistance. Samples were prepared from 98.9% purity and 90% reduction cold-rolled niobium bars. Annealing treatment of the cold-worked niobium samples was carried out in vacuum furnace at 1.33 Pa pressure, in the temperature of 1000 °C, for a time of 60 min. Annealed samples showing hardness of 80 HV were cut to dimensions of 20 × 30 × 4 mm 3 . Nitriding treatment was conducted at 1080 °C, gas mixture of 90% N 2 + 10% H 2 , flow rate of 5 × 10 -6 Nm 3 s -1 , and pressure of 1200 Pa (9 Torr), for a total time of 4 h comprised by two treatment steps of 2 h each. For comparison purpose, results for nitrided and non-nitrided niobium are confronted. Samples were characterized by XRD, nanoindentation, microhardness, SEM, and 2D surface topography and 3D interferometry profile analysis techniques. Cavitation testing was conducted according to ASTM G32-09. Comparatively, promising results based on the formation of niobium nitride phases in treated surfaces are presented and discussed in the present work.

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Section: First Results Of Cavitation Erosion Behavior Of Plasma Nitrimentioning

confidence: 99%

Section: Cavitation Erosion Behavior Of Structural Ceramicsmentioning

confidence: 99%

Section: Cavitation Erosion Behavior Of Structural Ceramicsmentioning

confidence: 99%

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First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

et al. 2015

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“…XRD results are extended from the earlier reported work [15] in which the tribological performance of various nanocomposite was investigated. This research is a continuation of existing work in terms of enhancing tribological and anti corrosive properties in harsh environment [28][29][30][31][32][33][34][35][36][37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

Bajwa

Khan

Nazir

et al. 2016

Acta Metall. Sin. (Engl. Lett.)

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This paper presents research findings on the tribological performance of electrodeposited coatings subject to nano-lubricants with the addition of nano-Al 2 O 3 and graphene and Ni/nano-Al 2 O 3 composite coatings. Electrodeposited coatings were produced by using a pulse electrodeposition method. Tribological experiments were conducted by using a linear reciprocating ball on flat sliding tribometer. Experimental results confirm that the wear and friction resistance properties have been significantly enhanced by doping of nano-effects in the lubricating oil and composite coating. The addition of Al 2 O 3 nanoparticles in the lubricating oil showed the best tribological properties, followed by Ni-Al 2 O 3 composite coatings and nano-oil with graphene. The surface morphology and microstructure of electrodeposited coatings were examined by using a Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS) and X-ray Diffraction (XRD). The wear mechanisms of these coatings subjected to tribological testing were investigated by post-test surface analyses. This research provides novel approach to design durable nano-coatings for tribological applications in various industries such as automotive, aerospace, locomotive and renewable energy technologies.

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“…Based on this, a tensile stress-life model that is more suitable for the prediction of the rolling contact fatigue life of ceramic balls is proposed. e cavitation-rolling contact fatigue condition of the material system is evaluated by integrating rolling contact and cavitation testing into one test method [10]. Some scholars have also studied the influencing factors of bearing failure.…”

Section: Introductionmentioning

confidence: 99%

The Crack Propagation Trend Analysis in Ceramic Rolling Element Bearing considering Initial Crack Angle and Contact Load Effect

Yuan

Wang

Liu

et al. 2021

Shock and Vibration

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Silicon nitride ceramic bearings are widely used for their excellent performance. However, due to their special manufacturing method, cracks will occur on ceramic ball surface, and this initial surface crack will propagate under the action of cyclic stress, which will lead to material spalling. This will greatly limit its service life in practical applications, especially under heavy load at high speed. Therefore, it is necessary to study the surface crack propagation of silicon nitride ceramic bearings. In this paper, the effect of initial crack angle and contact load on crack growth is analysed by the finite element method (FEM). A three-dimensional finite element model of a silicon nitride bearing ball containing an initial crack is created by the FEM. The cracks are initially classified based on the angle between the crack and the bearing ball surface, and the location of the most dangerous load for each type of crack is known by theoretical analysis. The stress intensity factors (SIFs) are calculated for the crack front to investigate the effect of load position on crack growth. Subsequently, the SIFs are calculated for each type of crack angle subdivided again to investigate the effect of crack angle on crack propagation.

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Cavitation and rolling wear in silicon nitride

Cited by 10 publications

References 16 publications

First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

First Results of Cavitation Erosion Behavior of Plasma Nitrided Niobium: Surface Modification

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

The Crack Propagation Trend Analysis in Ceramic Rolling Element Bearing considering Initial Crack Angle and Contact Load Effect

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