Investigation of a self-lubricating coating for diesel engine pistons, as produced by combined microarc oxidation and electrophoresis

Ma, Chunsheng; Chen, Dong; Zhu, Xiaohua; Yan, Zhijun; Fu, Jingguo; Yu, Jing; Liu, Zeze; Yu, Guangyu; Zheng, Shibin

doi:10.1016/j.wear.2017.10.012

Cited by 22 publications

(9 citation statements)

References 14 publications

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“…To improve the durability and reliability of diesel engine pistons, a ceramic coating was deposited using a combination process of microarc oxidation and electrophoresis deposition on the skirt of a high-silicon aluminum alloy piston. The friction coefficient measured on a reciprocating dry sliding test reduced by 35% against a boron copper cast iron liner material, and wear loss decreased by 95% compared to the substrate aluminum alloy [276].…”

Section: Chemical and Electrochemical Coatingsmentioning

confidence: 93%

A review of recent advances in tribology

et al. 2020

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The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last decade. This review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 years. Different aspects of tribology that have been reviewed including lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology. This review attempts to highlight recent research and also presents future outlook pertaining to these aspects. It may however be noted that there are limitations of this review. One of the most important of these is that tribology being a highly multidisciplinary field, the research results are widely spread across various disciplines and there can be omissions because of this. Secondly, the topics dealt with in the field of tribology include only some of the salient topics (such as lubrication, wear, surface engineering, biotribology, high temperature tribology, and computational tribology) but there are many more aspects of tribology that have not been covered in this review. Despite these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

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Section: Chemical and Electrochemical Coatingsmentioning

confidence: 93%

A review of recent advances in tribology

et al. 2020

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“…The results show that comparing with the sample, the friction force of the graphite composite coating sample in the three oils is reduced by 15%-30%. Ma et al (2018) applied a novel ceramic matrix composite to the highsilicon alloy piston skirts of diesel engines. The results illustrate that compared to the high-silicon aluminum alloys substrate, the friction coefficient of ceramic matrix composites against the liner material was reduced by 35% under dry sliding, the wear loss was decreased by 95%.…”

Section: Introductionmentioning

confidence: 99%

Adaptability of piston skirt coatings on the tribological performance of heavy-duty diesel engine under low viscosity lubricant

Yin

Wang

et al. 2021

ILT

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Purpose The purpose of this paper was to improve the frictional wear resistance properties of piston skirts caused by the low viscosity lubricant by studying the tribological performance of three novel coating materials. Design/methodology/approach Comparative tribological examinations were performed in a tribological tester using the ring-block arrangement under two viscosity lubricants, the loading force was applied as 100 N, the speed was set to 60 r/min and the testing time was 180 min. Findings Under low viscosity lubricant, the friction coefficient and wear of the three coatings all increase, and the friction coefficient and wear of the PTFE coating are the largest, while the MoS2 coating has the lowest friction coefficient and wear. Under low viscosity lubricant, the friction coefficient of the MoS2 coating is 2.1%–5.4% and 20.0%–24.3% lower than that of the SiO2 and PTFE coating, respectively. The friction coefficient and wear fluctuation rate of the MoS2 coating is the smallest when the lubricant viscosity decreases, which indicates that the MoS2 coating has excellent stability and adaptability under low viscosity lubricant. Originality/value To reduce the piston skirt wear caused by low viscosity lubricant in heavy-duty diesel engines, the friction and wear adaptability of three novel composite coating materials for piston skirts were compared under 0 W-20 low viscosity lubricant, which could provide a guidance for the application of wear-resistant materials for heavy-duty diesel engine piston skirt.

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“…The instantaneous high temperature forms the basic phases of α-Al 2 O 3 and γ-Al 2 O 3 on the aluminum alloy surface. MAO coatings surface is typically coarse and porous of the residual discharge channel [14][15][16][17]; however, the residual discharge channel can provide a better bonding force for the copper plating layer. The metal copper layer prepared by electroless copper plating technology can not only improve the decoration and beautification, but also improve the thermal conductivity and electrical conductivity of the alumina ceramic coating, thereby expanding the application field of aluminum alloy [18,19].…”

Section: Introductionmentioning

confidence: 99%

Characterization of MAO + Cu Composite Coatings on Aluminum Alloy

Yang

Gao

et al. 2021

Coatings

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Novel composite coatings were fabricated on 6061 aluminum alloy substrates by two steps combining micro-arc oxidation (MAO) plus electroless copper plating (Cu). Different MAO + Cu composite coatings were compared. Cu continuously and evenly covered an aluminum oxide surface during processing thus changing the surface topography. The adhesion of MAO + Cu composite coating was tested by the pull-out method. The best adhesion strength of the composite coating can reach industrial requirements. The effects of the composite coatings on friction were investigated using a ball-on-disc test method. It is found that copper in composite coatings plays a lubricating effect during the wear process under dry sliding. Furthermore, the mechanisms by which the observed advantages were produced are discussed.

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Investigation of a self-lubricating coating for diesel engine pistons, as produced by combined microarc oxidation and electrophoresis

Cited by 22 publications

References 14 publications

A review of recent advances in tribology

A review of recent advances in tribology

Adaptability of piston skirt coatings on the tribological performance of heavy-duty diesel engine under low viscosity lubricant

Characterization of MAO + Cu Composite Coatings on Aluminum Alloy

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