... plastic deformation and rapid surface heating, the surface porosities were effectively healed, thus reducing the surface roughness. Combined with the surface-strengthening effects of LSP, the frictional resistance and transfer layer formation on the CSAM LSP surfaces were reduced. The underlying...

... integrates these two surface texture parameters with the well-known standard surface roughness parameters (Arola's model). The relative weight of positive and negative heights of the surface is considered to describe the influence of the shape of the peaks and valleys on the stress concentration...

...Motohiro Kaneta; Kenji Matsuda One of the methods to avoid rolling contact fatigue is to reduce the film pressure due to surface roughness and the magnitude of its fluctuation. The roughness on rolling/sliding concentrated contacting surfaces has generally different asperity heights. In this study...

...Yang Duo; Tang Jinyuan; Xia Fujia; Zhou Wei With surface roughness restricted by grinding parameters, the characterization of roughness parameters and the inversion of grinding parameters are of great significance for improving surface performance and realizing active surface machining...

...-on-disk frictional experiments. Through analyzing the relationship between surface morphology and tribological properties, the antifriction mechanism of the multiscale micro-textured surface was analyzed from the perspective of 3D surface roughness parameters. The friction coefficient of the multiscale...

... method of topological data analysis was applied to surface roughness data. Wetting characterizations showed stable hydrophobic behavior of the two-layer coated samples. Through tribological characterization, we compared the friction behavior of uncoated steel samples and steel samples coated...

... AA6063 alloy artificial ageing two-body abrasion mechanical properties surface roughness correlation wear-rate Archard law surface roughness and asperities wear mechanisms The emission of greenhouse gases and global warming are potential threats to the sustainable development...

... in the cylinder bore is generated by a sequential honing process and is characterized by R k roughness parameters (R k , R vk , R pk , M r1 , M r2 ). Predicting the desired surface roughness relies primarily on two techniques: (i) analytical models (AM) and (ii) machine learning (ML) models. Both...

..., all of them can significantly affect the stress concentration and distribution on contact surface of materials, which validates the rationality of the method. 01 05 2021 30 06 2021 01 07 2021 27 07 2021 surface roughness backward propagation sensitivity analysis...

... supply, at which starvation initiates. The potential influential parameters (predictors) considered include normal force density, rolling velocity, sliding, lubricant viscosity, and surface roughness amplitude. A non-Newtonian thermal mixed lubrication model is employed to determine the critical...

.... To discuss the influences of dynamic load on the tribological properties of helical gear pair, the dynamic mesh force of tooth surface is obtained by torsional vibration model. The influences of working conditions and surface roughness on the tribological properties of helical gear pair are investigated...

...: x.jiang@hud.ac.uk Email: s.lou@hud.ac.uk Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 12 01 2021 02 03 2021 02 03 2021 29 03 2021 selective laser melting surface roughness surface texture parameters staircase...

... is essentially random, for which stochastic treatment is appropriate, and (2) surface roughness can be reduced to fractal mathematics using fractal parameters. Under certain mathematical constraints, the WM function is either stochastic or deterministic. The latter has the appeal that it contains no randomness...

... of wear-accelerated corrosion during sliding. The effect of wear-accelerated corrosion is evident from the change in average surface roughness (S a ) of the unworn areas. It is found that understanding the change in surface roughness due to wear–corrosion interactions is necessary to investigate the onset...

... by the advanced stir-casting method. Besides measurements of density, porosity, and Vickers hardness, in-depth characterizations of microstructures were performed. Specific wear-rate (SWR), coefficient of friction (COF), and abraded surface roughness (SR) of developed materials were measured under two-body...

... mixed lubrication wear surface roughness conformal contacts Motion and energy transfers are usually executed through conformal contacts of component surfaces including sliding and rolling motions. The surface micropitting fatigue wear is considered to be the main failure mode for mechanical...

...Yuyan Zhang; Lina Si; Xiaoqing Zhang; Juan Li; Wanjun Wang A deterministic adhesive model for the contact between an elastic layered medium with surface roughness and a smooth elastic microsphere was developed on the basis of the Lennard–Jones surface force law. Through numerical simulations...

... in the J OURNAL OF T RIBOLOGY . Manuscript received January 25, 2018; final manuscript received August 16, 2018; published online October 11, 2018. Assoc. Editor: Noel Brunetiere. 25 01 2018 16 08 2018 tribocorrosion wear modeling electrochemistry surface roughness wear synergism...

... thermal elastohydrodynamic lubrication (TEHL) model in point contacts considering surface roughness is developed in this study. This model is capable of determining the pressure and temperature under different lubrication regimes from mixed to full-film lubrication. Then, the established model is extended...

... Contact area Contact mechanics Surface roughness Asperities On a rough surface exist many micro-asperities, whose apexes are usually considered as spheres with a same radius. In 1966, Greenwood and Williamson [ 1 ] assumed that the height of the microspheres obeys the Gaussian distribution...