Tribological behaviour and lubrication performance of hexagonal boron nitride (h-BN) as a replacement for graphite in aluminium forming

Podgornik, Bojan; Kosec, Tadeja; Kocijan, Aleksandra; Donik, Črtomir

doi:10.1016/j.triboint.2014.09.011

Cited by 155 publications

(58 citation statements)

References 30 publications

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“…These particles combine the lubrication action of graphite, MoS 2 , and PTFE, and exhibit excellent high-temperature resistance [21,22] . Therefore, we hypothesized that hBN particles would overcome the drawbacks of the aforementioned particles, and thereby lead to improved wear resistance and anti-friction properties of the MAO coating.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Tribological Behavior of a TiO2/hBN Composite Ceramic Coating Formed via Micro-arc Oxidation of Ti–6Al–4V Alloy

Liu

Wang

et al. 2016

Journal of Materials Science & Technology

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Section: Introductionmentioning

confidence: 99%

Microstructure and Tribological Behavior of a TiO2/hBN Composite Ceramic Coating Formed via Micro-arc Oxidation of Ti–6Al–4V Alloy

Liu

Wang

et al. 2016

Journal of Materials Science & Technology

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“…Layered nanoparticles, such as graphite, MoS 2 , and boron nitride, maintain the characteristics of larger surface area and higher diffusivity compared with ordinary morphology particles, making flake materials as new type of lubricant additives. Further, layered silicate was considered as one of the best candidate materials because of their low cost, nontoxic, and stability properties.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of talc/carbon spheres composite as oil‐based additive enhancing the lubricating properties for steel‐steel contact

Fei

Luo

et al. 2020

Lubrication Science

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Talc/carbon spheres (TC) composite was successfully fabricated through a simple and eco-friendly hydrothermal method. The tribology properties of the base oil were significantly improved after adding TC composites, which had been studied by a ball on disc (BOD) tribometer. The friction coefficient of oil containing 0.5-wt% TC composite (0.5 TC-Oil) was only 0.08, with a decrease of 35.3% compared with the base oil at 5 N. Moreover, severe abrasive wear between friction pairs changed into slight plastic deformation lubricated with 0.5 TC-Oil, as confirmed by scanning electron microscope (SEM). These results reflected notable synergy between self-repair performance effect of talc and ball-bearing effect of carbon spheres. The study displayed the potential lubricating performance of the TC composite in current generation oil lubricants. K E Y W O R D Sball-bearing, lubricating properties, self-repair, talc/carbon spheres composite

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“…Further research has shown that dry powder can be added to fill the clearance of the tribopair or manufacturing interfaces as lubricants. The use of friction, deformation, collision, extrusion, slip rolling, and other microscopic motions of these tiny particles can reduce the direct contact of the asperities on the relatively moving surfaces and therefore reduce friction and wear, as well as protect the surfaces …”

Section: Introductionmentioning

confidence: 99%

Micro morphological observation and mechanism analysis of boundary layer evolution in mixed powder lubrication

Wang

Liu

et al. 2017

Lubrication Science

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In mixed‐powder‐lubricated interfaces, the lubrication performance is strongly affected by evolution of the boundary layer features. Therefore, the current investigation uses a laser microscopy system to observe the behaviours of boundary layer formed on the brass specimens during the process of graphite‐lubricated 0.45 C steel (HRC56) sliding upon brass alloy (HV160). The evolution process of mixed powder lubrication can be divided into 4 typical stages: running‐in, stable, deterioration, and damage. Multiple micro phenomena are observed in the boundary layers at different stages. These include extent of layer coverage, flaking, local adhesion, lamellar shedding, blisters, pits, and abrasion damage. These phenomena indicate that the boundary layer deteriorates from full coverage to a damaged powdery film, and eventually the serious wear on metal substrate. Moreover, an interface model of mixed powder lubrication is established to explain the changes in boundary layers. The model displays that the typically micro events above are related to the quantitative degree of overlapping of the asperities between opposing surfaces. At first, many particles bear the load collectively and adapt to velocity differences through inner shearing in powder layer. Later, plastic deformation and abrasion between asperities play a major role in surface velocity accommodation, and the metal substrates bear the load more directly.

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Tribological behaviour and lubrication performance of hexagonal boron nitride (h-BN) as a replacement for graphite in aluminium forming

Cited by 155 publications

References 30 publications

Microstructure and Tribological Behavior of a TiO2/hBN Composite Ceramic Coating Formed via Micro-arc Oxidation of Ti–6Al–4V Alloy

Microstructure and Tribological Behavior of a TiO2/hBN Composite Ceramic Coating Formed via Micro-arc Oxidation of Ti–6Al–4V Alloy

Synergistic effect of talc/carbon spheres composite as oil‐based additive enhancing the lubricating properties for steel‐steel contact

Micro morphological observation and mechanism analysis of boundary layer evolution in mixed powder lubrication

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