Journal ArticleDOI
Femtosecond Pulsed Ti:Sapphire Laser-Assisted Surface Texturing on Piston Ring and Its Tribology Characterization
TLDR
In this article, a femtosecond pulsed Ti3+:sapphire laser is used to generate dimples of the same size but with different area density on a moly-chrome ceramic deposited cast iron piston ring.Abstract:
\n Femtosecond laser-assisted surface texturing of compression piston rings is proposed and demonstrated. A femtosecond pulsed Ti3+:sapphire laser is used to generate dimples of the same size but with different area density on a moly-chrome ceramic deposited cast iron piston ring. The influence of the surface morphology and tribology operating conditions, such as reciprocating frequency and temperature of the lubricant, on friction and wear characteristics of textured piston rings and plateau honed liner samples is investigated. A decrease in the friction coefficient is observed with the texturing of rings. The dimple area density, which is defined as the ratio of the total textured area and the total area of the surface, of 16% and 27% offered a reduced coefficient of friction and minimize wear on the liner surface.read more
Citations
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A review of advances in tribology in 2020–2021
TL;DR: A recent survey as discussed by the authors highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.
Effect of ceramic surface texture on the tribological property of ceramics and carbon fiber reinforced silicon carbide ceramic matrix composite (C/SiC)
TL;DR: In this article , three processing methods including grinding, polishing, and laser engraving were used on ZrO2 and Si3N4 surfaces to obtain two types of surface textures including micro dimples and micro grooves.
Journal ArticleDOI
Effect of ceramic surface texture on the tribological property of ceramics and carbon fiber reinforced silicon carbide ceramic matrix composite (C/SiC)
TL;DR: In this article , three processing methods including grinding, polishing, and laser engraving were used on ZrO 2 and Si 3 N 4 surfaces to obtain two types of surface textures including micro dimples and micro grooves.
References
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Journal ArticleDOI
Global energy consumption due to friction in passenger cars
TL;DR: In this article, the authors presented calculations on the global fuel energy consumption used to overcome friction in passenger cars in terms of friction in the engine, transmission, tires, and brakes.
Journal ArticleDOI
Femtosecond laser-induced periodic surface structures
TL;DR: In this paper, the formation of laser-induced periodic surface structures (LIPSS) in different materials (metals, semiconductors, and dielectrics) upon irradiation with linearly polarized fs-laser pulses (τ,∼ 30-150 fs, λ, ∼, ∼ 800 nm) in air environment is studied experimentally and theoretically.
Journal ArticleDOI
Friction-Reducing Surface-Texturing in Reciprocating Automotive Components
TL;DR: In this article, a model is presented to study the potential use of micro-surface structure in the form of micro pores to improve tribological properties of reciprocating automotive components, where the Reynolds equation and the equation of motion are solved simultaneously for a simplified “piston/cylinder” system with surface texturing.
Journal ArticleDOI
Experimental Investigation of Laser Surface Texturing for Reciprocating Automotive Components
TL;DR: In this paper, an experimental study is presented to evaluate the effectiveness of micro-surface structure, produced by laser texturing, to improve tribological properties of reciprocating automotive components, including piston rings and cylinder linings.
Journal ArticleDOI
Hydrodynamic lubrication of textured steel surfaces under reciprocating sliding conditions
H.L. Costa,Ian M. Hutchings +1 more
TL;DR: In this article, the influence of surface topography on lubricant film thickness has been investigated for the reciprocating sliding of patterned plane steel surfaces against cylindrical counterbodies under conditions of hydrodynamic lubrication.