Journal of Tribology: Recent submissions
Now showing items 141-160 of 7021
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Effect of Radial Clearance on Static and Dynamic Performances of Single-Structured Hybrid Gas-Magnetic Bearing Rotor System
(The American Society of Mechanical Engineers (ASME), 2025)As the demand for ultrahigh-speed bearings grows, hybrid gas-magnetic bearings (HGMBs) have emerged as a research focus due to the ability to integrate the merits of active magnetic bearings (AMBs) and gas bearings (GBs). ... -
Study on Internal Load Distribution of Deep Groove Ball Bearings Considering Raceway Surface Waviness
(The American Society of Mechanical Engineers (ASME), 2024)A full circumferential contact mechanical modeling study considering the effect of the contact relationship between the waviness mesoscopic profile and the rolling element on bearing load distribution is carried out. In ... -
Air Foil Thrust and Journal Bearing Coatings: A Review
(The American Society of Mechanical Engineers (ASME), 2024)Surfaces of air foil thrust and journal bearings in high-speed turbomachinery are coated to improve their operational integrity, particularly when the aerodynamic load-carrying capacity is reduced during instances of startup ... -
Influence of Post-Processing and Build Direction on the Wear Behavior of Laser Powder Bed Fused Maraging Steel
(The American Society of Mechanical Engineers (ASME), 2024)The present study investigates the effect of post-processing (heat treatment: solutionizing at 850 °C for 2 h with aging at 490 °C for 3 h and cryogenic treatment at −196 °C for 24 h) and the effect of build direction ... -
Research on the Static and Dynamic Characteristics of Porous Air Bearings Considering Annular Groove Air Supply
(The American Society of Mechanical Engineers (ASME), 2025)The article examines the dynamic characteristics of porous air bearings in the critical pneumatic hammer state (the transition state from the steady state to the pneumatic hammer state). The dynamic characteristics mainly ... -
Assessment of Tool Condition and Surface Quality Using Hybrid Deep Neural Network: CNN-LSTM-Based Segmentation and Statistical Analysis
(The American Society of Mechanical Engineers (ASME), 2025)Effective and precise prediction of tool wear plays a key role in improving machining efficiency, and product quality and reducing production cost. The majority of earlier studies have depended on limited experimental data, ... -
Improving Surface Finish of Laser Additively Manufactured Curvilinear Surfaces Via Electropolishing and Electroless Coating
(The American Society of Mechanical Engineers (ASME), 2024)Laser-directed energy deposition (LDED) is a very useful additive manufacturing technique for repairing and manufacturing complex-shaped parts compared to traditional manufacturing techniques. However, the inadequate surface ... -
Mitigating Low-Speed Crawling and Jitter in Telescopic Hydraulic Cylinders Through Stick-Slip Dynamics Analysis and Friction Reduction Strategies
(The American Society of Mechanical Engineers (ASME), 2024)This study investigates the mechanisms of jittering in telescopic cylinders and proposes effective mitigation strategies. The focus is on the dynamic behavior of hydraulic cylinders under low-speed conditions, particularly ... -
Tailoring the Tribomechanical and Corrosion Behavior of Reverse Pulse Deposited Ni–Co–P Coating Through Cobalt Content Modulation
(The American Society of Mechanical Engineers (ASME), 2024)This study explores the influence of cobalt content on the tribomechanical and corrosion properties of Ni–Co–P coatings deposited through reverse pulse electroplating. The ratio of Co salt concentration to the total Ni and ... -
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 ...