Tribological Behavior Research Articles

Numerical simulation of the tribological behavior of cylinder liners containing hybrid textures (stochastic dimples and honing grooves)

Abstract This work aims to optimize the surface textures of two-stroke engine cylinder liners through numerical simulation. A mirror-like liner with stochastic texture patterns resulting from localized “peak outs” formed in the honing step of hard chrome coating was used as the reference surface. Honing grooves were digitally superimposed onto the reference surface, and the effects of the groove crossing angle (α), depth (d p), width (w), and density (d e) on the mixed lubrication and friction behavior of the piston/cylinder liner tribosystem were evaluated. The simulations used a deterministic modelling approach that couples a hydrodynamic model with an asperity contact model at the microscopic roughness scale. The optimal simulation results were obtained for grooves with α = 40°, d e = 0.15, w = 15 μm and d p = 1.5 μm. However, even the most favorable textured configuration showed inferior lubrication performance compared to the reference surface. These findings suggest that the stochastic texture resulting from mirror-like honing already provides advantageous lubrication conditions, making the addition of honing grooves unnecessary for the cylinder liners analyzed in this study.

Study on laves phase precipitation induced by transition elements in RHEAs coatings on Ti-6Al-4 V surface: Microstructure and tribological behaviors

Study on laves phase precipitation induced by transition elements in RHEAs coatings on Ti-6Al-4 V surface: Microstructure and tribological behaviors

Effect of hydrostatic pressure on the tribological behavior and mechanism of the multilayered graphite like-carbon (GLC) coating

Effect of hydrostatic pressure on the tribological behavior and mechanism of the multilayered graphite like-carbon (GLC) coating

Study on the tribological behaviors of the cylinder liner-piston ring in the ammonia-fueled engine

Study on the tribological behaviors of the cylinder liner-piston ring in the ammonia-fueled engine

Tribological behavior of PLA reinforced with boron nitride nanoparticles using Taguchi and machine learning approaches

Tribological behavior of PLA reinforced with boron nitride nanoparticles using Taguchi and machine learning approaches

Microstructural characteristics and tribological behaviour of LM13-based hybrid composites with zirconium carbide and fly ash

Microstructural characteristics and tribological behaviour of LM13-based hybrid composites with zirconium carbide and fly ash

Study on properties and tribological behaviors of silicon nitride-based Ti-DLC films

Study on properties and tribological behaviors of silicon nitride-based Ti-DLC films

High-temperature tribological behavior and mechanisms of a high entropy carbide ceramic

High-temperature tribological behavior and mechanisms of a high entropy carbide ceramic

Study on metal nanoparticles-PDA interface modification and its effect on the tribology behavior of PTFE self-lubricating coating materials

Study on metal nanoparticles-PDA interface modification and its effect on the tribology behavior of PTFE self-lubricating coating materials

An insight into tribological behavior of in-situ Synthesised AA6061/ZrB2 nanocomposites using a hybrid RSM-ANN technique

An insight into tribological behavior of in-situ Synthesised AA6061/ZrB2 nanocomposites using a hybrid RSM-ANN technique

Friction Characteristics of Nanocoated Biomedical 316L Stainless Steel with Tantalum, Niobium, and Vanadium Under Wet Conditions

Reducing friction between orthodontic components, such as archwires and brackets, is crucial in contemporary orthodontic treatments. Coating these components is a significant method to achieve this goal. This research is aimed To investigate the tribological performance of nanocoated 316L stainless steel (SS)—one of the most widely used alloys in orthodontic archwire manufacturing—coated with vanadium (V), tantalum (Ta), and niobium (Nb) via plasma sputtering at varying time intervals (1, 2, and 3 hours) under wet conditions simulating an oral in-service environment, which is unexplored previously in the existing literature. Using a computerized tribo-system applying 1 N for 20 minutes on coated SS substrates, the common alloys for orthodontic archwire manufacturing. Results: The results indicated that the coefficient of friction (CoF) increased generally under wet conditions as a result of hydrogen bonding and capillary adhesion. Ta emerged as the preferred coating, demonstrating substantial friction reduction compared to Nb and V. V was found to have a negative tribological impact. This work concluded that Coating 316L SS with Ta was identified to improve tribological behavior in wet conditions that simulate an oral environment, potentially minimizing the duration of orthodontic treatment and promoting efficient tooth movement.

Microstructure, mechanical and tribological behavior of high-entropy (TiNbMoZrW)Cx coatings prepared by reactive magnetron sputtering

Microstructure, mechanical and tribological behavior of high-entropy (TiNbMoZrW)Cx coatings prepared by reactive magnetron sputtering

Temperature-driven tribological behavior of MoS₂ coatings on copper: Experimental and molecular dynamics insights

Temperature-driven tribological behavior of MoS₂ coatings on copper: Experimental and molecular dynamics insights

Effect of temperature on the friction performance and mechanisms of Si3N4 and steel interfaces in oil-lubricated term rolling bearing

Purpose This study/paper aims to the tribological behavior and underlying mechanisms of various bearing material. With advancements in aerospace technology, conventional steel-bearing materials face challenges in meeting the demands of high loads, wide temperature ranges and other extreme operating conditions. Due to their exceptional physical and chemical properties, ceramic bearings have emerged as an ideal alternative. However, their service performance differs significantly from that of traditional steel bearings. Design/methodology/approach This study investigates the friction and wear characteristics of lubricants used in steel and ceramic bearings. The frictional behavior of aerospace lubricants is evaluated across four material pairings at temperatures ranging from ambient to 170°C. Findings The results demonstrate that aerospace lubricants exhibit superior tribological performance in Si3N4-based systems, characterized by lower coefficients of friction and reduced wear compared to steel/steel systems. This enhanced performance is primarily attributed to the high thermal stability of Si3N4. At 170°C, the coefficient of friction and wear rate in Si3N4 systems are markedly lower than those in steel/steel systems. Specifically, at 170°C, the disk wear rate of the Si3N4/M50 system was reduced by 75%, 74.5% and 65.7% relative to the GCr15/GCr15, M50/M50 and M50/M50NiL systems, respectively. Originality/value This paper elucidates the tribological behavior and underlying mechanisms of various bearing steel/steel and ceramic/steel material combinations. The findings aim to offer valuable theoretical guidance and experimental reference for the practical application of ceramic/steel bearings. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2025-0130/

In-situ Particulate-Reinforced Al Matrix Composites: Effect of the Synergistic Mechanism of ZrB2 and Al3Zr on Tribological Behavior

To investigate the key factors that cause ZrB2/AA6111 and (ZrB2+Al3Zr)/AA6111 aluminum matrix composites (AMCs) made via in situ reaction to behave differently in terms of friction and wear. Room-temperature dry sliding tribological behavior of AA6111 Al alloys, ZrB2/AA6111, and (ZrB2+Al3Zr)/AA6111 AMCs against silicon nitride (Si3N4) counterparts were investigated. The study showed that AA6111/Al alloy had the highest wear rate and the most unstable coefficient of friction (COF), indicating the worst abrasion resistance. (ZrB2+Al3Zr)/AA6111 AMCs exhibit a lower wear rate and higher COF than ZrB2/AA6111 AMCs. The result proved that the Al3Zr particles prepared by the in-situ reaction are strongly bonded (lattice misfit δ=2.7%) to the Al matrix and are not easily stripped from the substrate. ZrB2/AA6111 AMCs exhibited a lower COF attributed to the tribochemical reaction inducing the formation of more boric acid (H3BO3) films with a graphite-like structure having a lubricating effect.

Study on mechanical, tribological and fracture behaviour of n-Al2O3 reinforced Al7075 composites using Taguchi technique

ABSTRACT The work focuses on producing and investigating the mechanical, wear, and microstructure of Al7075 alloy nano-sized Alumina Oxide (n-Al2O3) particles with wt. % of 1, 2, and 3. Metallurgical methods have been used to create Al7075/n-Al2O3 composites. The microstructure showed that n-Al2O3 was distributed uniformly. Tests were done on a tribometer that was fastened to a hard steel disk to examine wear loss. In response to the surface approach, the wear parameters were optimised using the Taguchi L27 orthogonal array. The obtained result indicates that, hardness and tensile strength increase by 40% & 31% respectively. It is due to the increase of wt. % hard ceramic nano particulates. The Analysis of Variance (ANOVA) result indicates that, wt. % of n-Al2O3 is the most significant (61.02 %). With 95% reliability, the constructed model successfully predicted the wear rate, & ANOVA was used to corroborate the outcomes of all models.

Mechanical, wear and corrosion behavior of hot pressed, heat-treated Al6061 nano composites

This study explores the mechanical, tribological, and corrosion behavior of Al6061 composites reinforced with Zirconium di boride (ZrB 2 ) nano-composites, which were developed using the hot pressing (powder metallurgy (PM)) process and subjected to solutionizing treatment for 1 h at 530°C, followed by quenching in water, and then artificially aged. By reinforcing Al6061 with ZrB 2 nanoparticles (0.5% to 2% by weight), the study evaluates improvements in microstructure, hardness, compression strength, wear resistance, and corrosion performance. FESEM and EDS analyses confirmed that the ZrB 2 particles were evenly distributed, leading to a denser structure with minimal porosity. The addition of ZrB 2 significantly enhanced hardness (reaching 78 HV) and compressive strength (up to 106.06 MPa). Wear testing under dry sliding conditions showed a notable decrease in wear rate as the ZrB 2 content increased, attributed to grain refinement and strong interfacial bonding. Corrosion studies in 3.5% NaCl solution demonstrated that heat-treated composites had better resistance to corrosion than Al6061, with the 2 wt. % ZrB 2 composite exhibiting the least corrosion rate of 0.026 mm /year. These findings highlight the potential of Al6061/ZrB 2 composites, especially Al6061 2 wt.% ZrB 2 composite for high-performance and durable braking applications in automotive applications, where materials need to be strong, wear-resistant, and corrosion-resistant.

Effect of Chain Length on the Tribological Behavior of Polymer-Based Protic Ionic Liquids as Green High-Performance Lubricants

Effect of Chain Length on the Tribological Behavior of Polymer-Based Protic Ionic Liquids as Green High-Performance Lubricants

TRIBOLOGICAL PROPERTIES OF DC05 STEEL AT ELEVATED TEMPERATURES

Understanding the tribological behavior of steel under conditions with various temperatures is essential for its application in sheet metal forming. This paper investigates the friction and wear characteristics of DC05 steel at elevated temperatures using a high-temperature tribometer. Experiments were conducted at different temperature levels to evaluate changes in wear rate, friction coefficient, and material surface modifications. The results highlight the influence of thermal conditions on steel DC05’s mechanical performance and provide insights into optimising its usage at elevated temperatures applications.

The Importance of Fiber Orientation for the Performance of High-Performance Polymer-Based Hybrid Materials in Sliding Contact with Steel

The properties of composite materials depend not only on the composition but also on the distribution and orientation of the fillers, i.e., on the internal material architecture. Using the example of two differently composed PEEK-based hybrid materials, the influence of fiber orientation on the tribological behavior of these materials in sliding contact with steel was investigated. The tribological performance of these composites was assessed using a pin-on-disc (PoD) tribometer, testing in a pv range from 0.25 to 32 MPa·m/s. The findings indicate that the printed specimens exhibit a high degree of fiber orientation aligned parallel to the printing paths. Conversely, the injection-molded samples display a three-layered structure across the thickness, with fibers in the skin layers aligned parallel to the injection direction but perpendicular to it in the core. These variations in morphology are evident in both the mechanical properties and the tribological behavior. To describe the influence of the fiber orientation on tribological properties, a model is proposed that allows the prediction of tribological properties for any fiber orientation. Although fiber orientation appears to be the dominant factor in tribological behavior, there is also a clear influence of additional fillers.