Boundary lubrication of stainless steel and CoCrMo alloy based on phosphorous and boron compounds in oil-in-water emulsion

Yan, Jincan; Zeng, Xiangqiong; Ren, Tianhui; Heide, Emile van der

doi:10.1016/j.apsusc.2014.07.160

Cited by 20 publications

(22 citation statements)

References 30 publications

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“…With continuing sliding, the emulsion droplet could well started to break, and the oil component in the emulsion might came out. Under the tested conditions, the oil component might adsorbed and reacted with the metal surface, generating a protection film, similar to the results presented in [13].…”

Section: The Interactions Between Peg Lactide Coatings and Emulsionssupporting

confidence: 68%

“…Moreover, the COF of the coating with lactide is almost the same as that without lactide. It suggests that when using emulsion with additive, the additive effect is predominant due to the formation of protective boundary layer from the additive, see [13]. When using emulsion without additive, the coating with lactide always performs better than that without lactide.…”

Section: The Interactions Between Peg Lactide Coatings and Emulsionsmentioning

confidence: 95%

“…Besides the contribution of the polymer brushes, the formation of boundary layers from the emulsion with additive may also play a role. The additive used in the emulsion can form effective boundary layers on the rubbing surface by adsorption and tribo-chemical reaction, as explained in full detail in [13]. From Fig.…”

Section: The Interactions Between Peg Lactide Coatings and Emulsionsmentioning

confidence: 99%

“…In this work however, the focus was on demonstrating the lubrication concept for interacting contacts of CoCrMo. The lubricating action of an oil-in-water O/W emulsions can be explained using the plate-out theory, which is presented by the authors in full details in [13]. When an oil droplet is exposed to a metal surface, the layer formed by the polar orientation of the emulsifier molecule induces droplets to adsorb onto the metal surface.…”

Section: Water-based Lubrication and Bio-medical Applicationsmentioning

confidence: 99%

“…The macroscopic tribological performance of the designed lubrication concept was explored by measuring the frictional response of the amphiphlic coating and the hydrophilic coatings with or without GO intermediate layer, in water and in a tailored emulsion, with a known tribo chemical response [13]. Water was taken as a reference, as it was used before to examine the wear and corrosion of CoCrMo alloy [22].…”

Section: Scope Of the Workmentioning

confidence: 99%

See 4 more Smart Citations

Exploring an alternative aqueous lubrication concept for biomedical applications: Hydration lubrication based on O/W emulsions combined with graphene oxide

Yan

Zeng

Ren

et al. 2015

Biosurface and Biotribology

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Water-based lubrication concepts are of high interest for applications that require friction and wear control in a bio-medical environment. In this work, a concept of aqueous lubrication is presented based on hydration of surface active polymers combined with graphene oxide. Three different kinds of surface-active polymers with or without graphene oxide were coated on a CoCrMo alloy surface, and the samples were characterized by ATR and XPS. Hydration lubrication was created from a tailored oil-in-water (O/W) emulsion. Enhanced friction reducing capability was found for the polymeric coatings in combination with graphene oxide. The tribological behaviour of a PEG-lactide coating in emulsion was better than that of PEG coating, indicating the advantage of using hydrophilic and lipophilic group containing surface-active polymers for emulsion lubrication. The overall maximum reduction in friction that was achieved for a sliding contact of coated engineering surfaces from CoCrMo at low sliding velocity and moderate contact pressure was of about 63% compared to uncoated CoCrMo sliding in water at the same operational conditions. & 2015 Southwest Jiaotong University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: The Interactions Between Peg Lactide Coatings and Emulsionssupporting

confidence: 68%

Section: The Interactions Between Peg Lactide Coatings and Emulsionsmentioning

confidence: 95%

Section: The Interactions Between Peg Lactide Coatings and Emulsionsmentioning

confidence: 99%

Section: Water-based Lubrication and Bio-medical Applicationsmentioning

confidence: 99%

Section: Scope Of the Workmentioning

confidence: 99%

See 3 more Smart Citations

Exploring an alternative aqueous lubrication concept for biomedical applications: Hydration lubrication based on O/W emulsions combined with graphene oxide

Yan

Zeng

Ren

et al. 2015

Biosurface and Biotribology

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Preparation of borate ester and evaluation of its tribological properties as an additive in different base oils

Jin

Yang

et al. 2016

Lubr. Sci.

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N‐containing borate ester (MEBE) with five‐member ring structure as a lubricant additive was synthesised. The tribological properties in liquid paraffin (LP), poly‐alpha‐olefin (PAO) and dioctyl sebacate (DOS) were evaluated, and the action mechanisms in different base oils were also explored. It was found that as‐synthesised borate ester possesses excellent antiwear performance in LP and PAO. XPS analysis suggests that the additive forms a protective film on the rubbing surfaces which is composed of BN, Fe2O3, polyoxyethylene ether and N‐containing organic compounds. The inorganic and organic protective films in the metal surface effectively improve the antiwear ability of the base stock. However, when the additive MEBE was introducted into DOS base oil which is prone to adsorbing to the metal surface because of the high polarity of DOS, it influences the compactness of the film formed by the DOS, resulting in weak antiwear property. Copyright © 2016 John Wiley & Sons, Ltd.

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Tribological behaviour of AISI 1045 carbon steel in metalworking fluid containing Pseudomonas pseudoalcaligenes

Dong

Han

et al. 2022

Lubrication Science

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The microbial contamination of metalworking fluid (MWF) has been increasingly recognised as an issue in the machining industry. To investigate the effects of microbes on the tribological behaviour of AISI 1045 carbon steel in the MWF, a strain of Pseudomonas pseudoalcaligenes was isolated from waste metalworking fluid (WMWF). The biodegradation of MWF and the tribological behaviour of carbon steel in MWF in the presence of bacteria and its extracellular polymeric substances (EPS) were studied. The results showed that the buffer agent and emulsifier were severely biodegraded. The lubricity of the MWF increased first and then dramatically decreased, resulting in a similar trend for the wear of carbon steel in MWF upon prolonging the culture time. The wear mechanism of carbon steel involved a transformation from abrasive wear into tribo‐corrosion wear. Remarkably, the lubricity of the MWF was enhanced during the exponential microbial growth stage due to the synergistic reduction in friction by the layer of adsorbed EPS and the additive layer.

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Boundary lubrication of stainless steel and CoCrMo alloy based on phosphorous and boron compounds in oil-in-water emulsion

Cited by 20 publications

References 30 publications

Exploring an alternative aqueous lubrication concept for biomedical applications: Hydration lubrication based on O/W emulsions combined with graphene oxide

Exploring an alternative aqueous lubrication concept for biomedical applications: Hydration lubrication based on O/W emulsions combined with graphene oxide

Preparation of borate ester and evaluation of its tribological properties as an additive in different base oils

Tribological behaviour of AISI 1045 carbon steel in metalworking fluid containing Pseudomonas pseudoalcaligenes

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