...Jianpeng Wu; Peng Zhao; Jiahao Cui; Liyong Wang; Chengbing Yang; Jianping Ouyang Predicting the coefficient of friction (COF) is essential for enhancing the efficiency and reliability of mechanical systems. Nevertheless, traditional mechanistic models relying on fixed values or fitted curves fail...

... coefficient of friction of the composite cladding depositions at ( a ) 10 N normal at 3 m/s, 4 m/s, and 5 m/s sliding velocities, ( b ) 20 N normal at 3 m/s, 4 m/s, and 5 m/s sliding velocities, and ( c ) 30 N normal at 3 m/s, 4 m/s, and 5 m/s sliding velocities Average coefficient of friction...

.... It was found that at 40 N, a shield began to develop between the disc and pin surface, reducing the coefficient of friction (COF), and friction and oxide were the primary processes of wear mechanisms. A larger load caused the protective layer to be destroyed; increasing COF, and adhesion and delamination were...

..., number of cycles, time, and high vacuum were considered to be constant while performing these high-temperature tribology experiments. As-built and heat-treated samples against the alumina ball resulted in lower coefficient of friction (COF) values at high temperatures compared to room temperature...

... stator vane (VSV) system were investigated through the basic pin-on-disc test and actual shaft-bushing test. Different machine learning (ML) models were established based on the experimental information to predict the coefficient of friction (COF) and wear-rate. The results indicated...

.... In comparison to casted samples, LPBF-processed samples showed low coefficient of friction (COF) values. The highest COF was observed on the cast Inconel 718 against the tungsten carbide counter body. The wear mechanisms were studied using scanning electron microscopy. Email: me19d505@iittp.ac.in 1...

.... Email: pmenezes@unr.edu Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 13 02 2022 13 04 2022 14 04 2022 10 05 2022 alumina aluminum borate coefficient of friction wear-rate interaction parameter hardness...

... 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...

...: 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 process with a more ordered...

... apparent influence on the coefficient of friction calculated for higher loads or slower rolling speeds. The thermal film thickness is again obtained from Eqs. (5 a ) and (6) , with k i values set to the original Gupta estimations. The validity of the liquid-like state of the shear layer (defined...

... 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...

... has been progressing. For example, the wear characteristics with the usage of MR fluid are measured under boundary lubrication in Ref. [ 5 ]. Tribological performance of a MR suspension is studied in Ref. [ 6 ]; the coefficient of friction (COF) with use of MR fluid is measured by linear-oscillation...