Journal of Tribology: Recent submissions
Now showing items 441-460 of 7312
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Evolution of Lubrication Characteristics of Double-Nut Ball Screws Based on an Efficient Surface Roughness Modeling Method
(The American Society of Mechanical Engineers (ASME), 2024)Accurate prediction of lubrication characteristics, specifically film thickness and pressure distribution, is pivotal for ensuring optimal performance in ball screws. Despite its significance, there is a notable dearth of ... -
Static Characteristics and Dynamic Coefficients of a Gas–Oil-Lubricated Journal Bearing Under a Pressurized Refrigerant Environment
(The American Society of Mechanical Engineers (ASME), 2024)The journal bearing is pivotal for the advancement of refrigerant compressors. While the gas–oil lubrication mechanism has been explored in some previous studies, the dynamic coefficients of gas–oil-lubricated bearings in ... -
Design, Modeling, and Testing of a Novel Elastohydrodynamic Seal for Supercritical CO2 Power Cycles
(The American Society of Mechanical Engineers (ASME), 2025)Effective sealing is a critical challenge in achieving the full potential of supercritical carbon dioxide (sCO2) power generation. Leakages from sCO2 cycles can reduce efficiency by up to 0.65%, underscoring the need for ... -
Texture Parameters' Impact on Computational Efficiencies of Multigrid and Progressive Mesh Densification Methods for Solving Textured Journal Bearing Problems
(The American Society of Mechanical Engineers (ASME), 2025)The numerical solution of textured journal bearings can be obtained by different methods such as progressive mesh densification (PMD), multigrid (MG), and fixed mesh or fixed mesh density (FMD). However, the computational ... -
Experimental Study on the Performance in Milling Operations of Inconel® 718 With TiN/TiAlN-Coated Tools
(The American Society of Mechanical Engineers (ASME), 2025)The Inconel® 718 alloy presents superior mechanical properties, which is why it is considered a difficult-to-machine material. To improve the milling process performance, multilayer TiN/TiAlN-coated tools were deposited ... -
Tribological Performance of Carbon Nanospheres as Lubricant Additives: Insights From Molecular Dynamics Simulation and Experimental Analysis
(The American Society of Mechanical Engineers (ASME), 2025)To investigate the lubrication mechanism of carbon nanospheres and compare their tribological performance with carbon powder, this study presented a comprehensive analysis of their potential as lubricant additives through ... -
Improved Analytical Model for Mesh Stiffness of Helical Gears Considering the Relationship of Friction and Flash Temperature Under Steady Temperature Field
(The American Society of Mechanical Engineers (ASME), 2025)In the transmission process, the thermal deformation of gears due to external factors, coupled with the thermal expansion of the tooth profile induced by flash temperature from surface friction, significantly impacts the ... -
The Tribocorrosion Resistance of Posttreated Supersonic Plasma-Sprayed MoSi2 Coating
(The American Society of Mechanical Engineers (ASME), 2025)MoSi2 coatings were prepared on a 45CrNi substrate by supersonic plasma spraying (SAPS). The tribocorrosion resistance of MoSi2 coating and posttreated MoSi2 coating (P-MoSi2) in the seawater environment was analyzed. After ... -
The Elevated Temperature Tribological Performance of Tough and Superhard TaMoN–Ag Films With Solute and Nanocomposite Structures
(The American Society of Mechanical Engineers (ASME), 2024)Films have been prepared with not only high hardness to guarantee excellent wear resistance but also high toughness to prevent brittle fracture at low to middle-high temperatures. On the basis of ternary transition metal ... -
Rapid Failure of Lubricated Contacts With Grease Under Zero Entraining Velocity Condition
(The American Society of Mechanical Engineers (ASME), 2024)In response to the rapid failure of grease lubrication under low surface speed with zero entraining velocity, a common occurrence in ball screws or cageless rolling element bearings, detailed observations were conducted ... -
Effect of Variable Load on Centralized Dimple in an Opposite Sliding Condition
(The American Society of Mechanical Engineers (ASME), 2024)In ball bearings without a cage, adjacent balls exhibit a zero-entrainment velocity (ZEV) contact condition, which is worse than typical pure rolling or rolling–sliding contact, and the contact between adjacent balls under ... -
NiCrBSi/WC Composite Claddings Processed on AISI 316L Steel Alloy by the Direct Laser Deposition Process: Studies on Dry Sliding Wear Behavior and Wear Mechanism Maps
(The American Society of Mechanical Engineers (ASME), 2024)This study presented the wear behavior of the NiCrBSi/WC composite claddings processed on an AISI 316L steel alloy substrate by laser cladding approach. The scanning electron microscope (SEM) morphology of the claddings ... -
Tribological Impact of Carbon Black Nanoparticles Obtained From Recycled Waste Tires as Additive to Motor Oil
(The American Society of Mechanical Engineers (ASME), 2025)Used tires are commonly stockpiled at landfills, taking up a vast space of land and leading to serious environmental issues, which makes recycling and finding better waste management strategies necessary. This study explores ... -
Influence of Physical Electrodeposition Attributes on Mechano-Tribo and Wettability Characteristics of Ni-Co Enhanced Nanocoating
(The American Society of Mechanical Engineers (ASME), 2025)The current work presents a systematic exploration of the pulse electrodeposition process for Ni-Co nanocoating, with a focus on the impact of varying duty cycles (20–100%) and current density (3–9 A/dm2). The work is ... -
Inner Race Dynamics of a High-Speed Ball Bearing With Elastic Ring Squeeze Film Damper
(The American Society of Mechanical Engineers (ASME), 2025)This paper aims at the inner race dynamics of a high-speed ball bearing incorporated with Elastic Ring Squeeze Film Damper (ERSFD). A dynamic model of the inner race with three degrees-of-freedom (DOFs) is established in ... -
The Effect of PTFE Content on Tribological Properties of Polyoxymethylene Composites
(The American Society of Mechanical Engineers (ASME), 2025)Polyoxymethylene (POM) and its composites with excellent mechanical properties are often used as alternative materials in gear transmission design. This paper considers the practical application scenario of POM gears, using ... -
Rolling Element Bearing Fault Diagnosis by the Implementation of Elman Neural Networks With Long Short-Term Memory Strategy
(The American Society of Mechanical Engineers (ASME), 2025)Bearing clearance is a common issue in mechanical systems due to unavoidable assembly errors, leading to weak fault features that are challenging to detect. This study introduces a novel diagnostic technique for detecting ... -
Numerical Simulation and Experimental Investigation on Friction and Lubrication Behaviors of Chevron Micro-Textured Valve Plate/Cylinder Block Interface With Various Area Densities
(The American Society of Mechanical Engineers (ASME), 2024)As the critical friction pairs of swashplate-type axial piston pumps, the cylinder block/valve plate lubricating interface is the primary source of friction, wear, and leakage in axial piston pumps. Surface micro-texturing ... -
Microstructure and Friction Characteristics of SiC/Ni60 Coatings by Different Directed Energy Deposition Laser Powers
(The American Society of Mechanical Engineers (ASME), 2025)The microstructure and tribological characteristics of SiC/Ni60 composite coatings manufactured using directed energy deposition (DED) technology are investigated. The influence of different laser powers on the composites ... -
Rheological and Electro-Pitting Performance of Electric Vehicle Motor Greases With Various Nanoparticle Greases
(The American Society of Mechanical Engineers (ASME), 2025)As the performance and efficiency requirements of electric vehicles (EVs) continue to expand, the demand for advanced driveline lubricants has grown exponentially. Unlike traditional internal combustion engine (ICE) vehicles, ...