... was 0.41 ± 0.15 µ m. The scan length was 2.5 mm long with a cutoff length of 0.5 mm. The coefficient of friction (COF) was recorded during the tests, and the specific wear-rate (W, mm 3 /Nm) was measured (Eq. (2) ) by calculating wear volume. The wear volume is calculated by using the recorded wear depth...

... with different coating materials. The coefficient of friction of uncoated base materials (ranging from 0.221 to 0.269) and the two-layer hydrophobic coatings (ranging from 0.234 to 0.273) indicated that the coatings confer hydrophobic properties to the substrates without a notable change in the friction behavior...

...Lu-Chao Zhang; Chang-Guang Zhou The coefficient of friction (COF) is a key factor to estimate the performance of ball screws. Pieces of research focus on the experimental study of the COF, leading to the COF chosen empirically in many studies. To acquire the COF of the ball screw, a measuring...

...Máté Szűcs; György Krallics; John G. Lenard The flat rolling process is initiated when the frictional forces draw the strip to be rolled into the roll gap. These forces depend on the coefficient of friction, knowledge of which is essential to understand, describe, and analyze the process. Several...

... on the worn scars, which protected the tribo-surfaces and subsided the wear. The reduced graphene oxide (rGO) with the interlamellar distance of 0.35 nm in the (002) plane provided minimum resistance to shear and exhibited maximum reduction in coefficient of friction (COF) for the paraffin grease...

... 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...

... may compromise the friction. This paper reports on wetting, dry friction, and roughness properties of TiO 2 coated (hydrophilic) and polymethyl hydrogen siloxane (PMHS) coated (hydrophobic) self-cleaning ceramic tiles. The coefficient of friction values of the tile–rubber interface do not change...

.... With an increasing load and contact area of interacting bodies, the coefficient of friction first drops sharply with an increasing normal load and then begins to grow. We have found out that the adhesion component of friction contributes to the friction coefficient at small loads. We have shown that the hardness...

..., 2019. Assoc. Editor: Stephen Boedo. 09 08 2018 26 11 2018 coefficient of friction phase space reconstruction radar plots multivariate graph centrobaric trajectory friction state identification Recent advances have revealed that the running-in is a self-organization...

... by the bulk temperature and thermal conductivity of the solids. Its thickness is controlled by a minimum coefficient of friction conditions. The solution considers that the conduction across the film thickness is the dominant heat dissipation mechanism. To account for temperature gradients through...

... applied and unapplied magnetic fields. In addition, the linear sliding friction of an MR elastomer with respect to different velocities and loads is measured using a linear sliding tester. coefficient of friction wear Magneto-rheological (MR) elastomer magnetic field Magneto-rheological...

... for contact surfaces operating under lubricated conditions. The results of this investigation performed on groove- and dimple-textured surfaces under low-load, low-sliding speed conditions confirmed the correlation between the kurtosis and skewness parameters and the coefficient of friction. For textured...

...HyunWook Lee; Corina Sandu; Carvel Holton The coefficient of friction (CoF) is a very important factor for designing, operating, and maintaining the wheel-rail system. In the real world, accurate estimation of the CoF at the wheel-rail interface is difficult due to the effects of various uncertain...

... scanning calorimetry friction magnetic fluids magnetorheology scanning electron microscopy surface roughness wear wear testing magnetorheological (MR) fluid wear coefficient of friction additives Magnetorheological (MR) fluid is a type of classical smart materials, which consist...

... of the energy in time-frequency domain as well as the coefficient of friction, three stages of coating life are identified. They are healthy period, developing damage, and failure. It is shown that the energy feature can detect whenever wear and damage appear and solid lubricant loses its lubrication...

...Said Jahanmir; Hooshang Heshmat; Crystal Heshmat Diamondlike carbon (DLC) coatings, particularly in the hydrogenated form, provide extremely low coefficients of friction in concentrated contacts. The objective of this investigation was to evaluate the performance of DLC coatings for potential...