A Review on Friction Reduction by Laser Textured Surfaces in Internal Combustion Engines

Laki, Gabor; Nagy, Á.; Rohde-Brandenburger, Jan; Hanula, Barna

doi:10.2474/trol.17.318

Cited by 4 publications

(3 citation statements)

References 82 publications

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“…It is a laser-based surface treatment process that can modify the surface of materials in a controlled manner [105] to create micro-and nanometric scale surface features, such as channels, pillars, and cavities, which can be used to improve the surface properties of materials, such as friction, wear, and adhesion. Various laser sources, such as picosecond (ps-), fs-, and ns-lasers, have been used for surface structuring [106]. The choice of laser source depends on the desired surface structure, the material properties, and the processing parameters.…”

Section: Laser Surface-structuring Processmentioning

confidence: 99%

Overview of Surface Modification Strategies for Improving the Properties of Metastable Austenitic Stainless Steels

Rezayat

Moghadam

Moradi

et al. 2023

Metals

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Metastable austenitic stainless steels (MASS) are widely used in various industrial applications due to their exceptional compromise between mechanical properties and corrosion resistance. However, the mechanical properties of these materials can be further enhanced by surface treatments. This paper reviews various surface treatment methodologies used to improve the mechanical properties of MASS, with particular attention to laser treatments. The effects of these surface treatments on the microstructure and chemical composition in the thermal affected zone of the MASS are discussed, and their impact on the material’s mechanical properties, such as hardness, tensile strength, and fatigue life, are investigated in detail. Additionally, the paper highlights the limitations of these surface treatments and points out some areas where further research is needed. The findings presented can be used to guide the selection of appropriate surface treatment techniques for specific applications, ultimately improving the performance and lifespan of MASS in various industrial settings.

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Section: Laser Surface-structuring Processmentioning

confidence: 99%

Overview of Surface Modification Strategies for Improving the Properties of Metastable Austenitic Stainless Steels

Rezayat

Moghadam

Moradi

et al. 2023

Metals

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“…It was observed that the friction resistance and the wear loss of the textured surface were reduced under reciprocal movement contact conditions, including fretting [3,4]. Additionally, it has been presented that the friction coefficient changes depending on the arrangement and shape of the texture, suggesting that the friction coefficient can be controlled by optimizing the texture morphology, and the application of surface texturing to the tensioner interface can stabilize the friction properties [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Applicability of Convex and Concave Shaped Surface Texturing to Improve Damping Performance of Mechanical Tensioner for Timing Chain of Internal Combustion Engine

Seki,

Yamaguchi,

Fujitsuka

et al. 2024

Tribology Online

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The present study describes an improvement of damping performance of a mechanical tensioner driven by friction force at the power spring interface, used for the timing chain system for an internal combustion engine. The mechanical tensioner consists of a power spring subjected to face-to-face contact with a reciprocal motion and a leaf spring to apply the reaction load. The concave and convex surface texture was fabricated with an electrochemical etching on the power spring surfaces. Since the reaction load is affected by the friction force at the power spring interface, the damping performance is evaluated from a hysteresis loop resulting in the reaction load and the plunger displacement trajectory. Superior stabilization of the reaction load and a remarkable decrease of the wear loss including the restriction of the oxidation was found on the convex textured tensioner in lubricated condition. The tensioner performance was also evaluated in staved lubricating conditions. Results showed that the change of the reaction load of the convex textured tensioner was small just before the stiction occurrence. In contrast, the reaction load of the concave textured tensioner increased with the increase in the number of cycles. Therefore, the applicability of the convex surface texture to the power spring surface of the tensioner was confirmed. It was also estimated that the discharge of the wear debris is an important factor in maintaining the tensioner performance.

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“…With the objective of reducing friction, researchers have proposed various methods to improve the performance of journal bearings such as the use of biolubricants and surface texture [6][7][8][9][10]. Recently surface texturing has emerged as a means to reduce friction in numerous applications such as automotive components [11,12], piston rings [13][14][15][16][17][18][19], mechanical seals [20][21][22], and fluid film bearings [23][24][25][26][27][28][29]. In hydrodynamic bearings, texture improves the loadcarrying capacity by increasing the fluid film pressure [30][31][32][33][34][35][36][37] and reducing friction [38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

A Review of Performance of Textured Journal Bearing

Mishra,

Aggarwal

2023

Tribology Online

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Due to emerging concerns for energy-efficient and environment-friendly journal bearings, efforts are being made to improve their performance behaviours. Green tribology also aims to reduce friction and wear. In this direction, surface textures are employed on the surfaces of mating parts to minimize friction and enhance load-carrying capacity. Surface textures comprising numerous microgeometries such as dimples, grooves or pits are found to be capable of increasing bearing performance. In this article, findings of numerical and experimental investigations on the performance of textured journal bearings have been summarized. It is found that the presence of texture on the bearing surface yields lower friction and higher load-carrying capacity. This article concludes by discussing the effect of texture parameters on the performance characteristics of the journal bearing.

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A Review on Friction Reduction by Laser Textured Surfaces in Internal Combustion Engines

Cited by 4 publications

References 82 publications

Overview of Surface Modification Strategies for Improving the Properties of Metastable Austenitic Stainless Steels

Overview of Surface Modification Strategies for Improving the Properties of Metastable Austenitic Stainless Steels

Applicability of Convex and Concave Shaped Surface Texturing to Improve Damping Performance of Mechanical Tensioner for Timing Chain of Internal Combustion Engine

A Review of Performance of Textured Journal Bearing

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