... by thermal softening and oxidation. Therefore, static mechanical properties (H and E) do not fully predict fretting wear resistance in complex conditions. Cr coating fretting wear temperature oxidation thermal softening coatings dry friction sliding surface properties and characterization wear...

... through case studies confirmed its accuracy, demonstrating its high practical value. bearings fluid film lubrication hydrodynamic lubrication journal bearings sliding China Scholarship Council 10.13039/501100004543 202306950088 National Natural Science Foundation of China...

... the wear mechanisms acting on the contacting surfaces. In past work, dynamical systems theory has been successfully applied to tribosystems involving rolling pairs. However, its applicability to sliding metallic pairs is still far from straightforward. To address this problem, a dynamic analysis in time...

... wear. The wear resistance is enhanced by the synergistic interaction of WC–17Co particles and a tribo-oxide layer. coatings Composites sliding wear mechanisms National Natural Science Foundation of China 10.13039/501100001809 92266204 and 52305228 Youth Innovation Promotion...

... in maintaining wear resistance at 300 °C. However, at 500 °C, elevated oxidation and matrix softening increased the coefficient of friction until 100 m of sliding distance, where stabilization occurred. Hybrid ceramic reinforcement improved abrasive wear resistance and limited oxidation wear by reducing tribo...

... under varying speed, sliding velocity, and loading conditions at room temperature. Counter disc: Gray cast Fe, hardened steels, and ceramic discs are the counter disc materials used. Wear mechanism: The wear mechanism of the Fe-based sintered friction materials is predominantly adhesive...

...P. Susmitha; V. S. Senthil Kumar This research aims to assess the enhancements in tribological performance of a stir-cast aluminum hybrid composite (AA6082-T6 with 4 wt% fly ash and 3 wt% alumina). The wear properties of the composite were evaluated as functions of load, sliding speed, and duration...

...Noël Brunetière During the wear process of surfaces in sliding friction, there is a running-in period during which the topography of surfaces changes with time before reaching the steady wear regime. In the steady wear regime, the statistical parameters used to describe the topography...

... using a pin-on-disk wear tester. Wear experiments have been conducted under dry sliding conditions at different operating loads (10, 20, 30, and 40 N) and sliding velocities (0.1, 0.2, 0.3, and 0.4 m/s) at room temperature. The incorporation of ZrO 2 nanoparticles improves the microhardness of the cast...

... the transition from stationary to sliding, making it ideal for assessing textured surfaces and adhering to standardized testing protocols. While the GMG 200 excels in portable, real-time dynamic testing, the Pendulum tester provides precision in evaluating surface texture and friction under controlled conditions...

..., for ν = 0.3 and different values of the coefficient of friction, for the 2D sliding harmonic loading of an exponentially graded half-plane: ( a ) considering mean pressure and ( b ) zero mean pressure Maximum value of deviatoric strain energy density ξ as a function of the grading coefficient α...

... nanotribology contact angle abrasion adhesion dry friction nanohardness hydrophobicity nanoindentation micro tribology sliding surface properties and characterization surface roughness and asperities surface treatments wear mechanisms wettability Since the discovery of gold coating...

... °C during the test), the PEEK polymer matrix decreases in strength, creating a weaker surface when exposed to the repetitive sliding of a counterface. Consequently, for the pure PEEK, large debris particles are generated and pushed to the outside of the wear track (Fig. 6( b ) ), which leaves...

... by the properties of the oxide layer formed during sliding. Under higher loads, the oxide layer on the alloy surface fractured, resulting in the generation of flake-like debris, which contributed to third-body abrasion. Additionally, the study examined the transfer film formation on the alumina counterface under...

... ournal of T ribology . 19 08 2024 05 11 2024 06 11 2024 28 11 2024 fretting contact planetary gear-bearing interference fit non-uniform interference fretting slip contact area contact mechanics gears sliding surface fatigue and fretting National Natural...

... Steel ,” Mater. Res. , 18 ( 3 ), pp. 569 – 574 . 10.1590/1516-1439.349914 [6] Katoch , S. , Sehgal , R. , and Singh , V. , 2016 , “ Effect of Cryogenic Treatment on the Tribological Behaviour of H11 Hot Die Steel Dry Sliding Against D3 Steel ,” Tribol.—Mater. Surf. Interfaces...

..., and in the subsequent phase, the current passes intermittently. In the third phase, the current passes through the contact completely (Fig. 11 ). The three phases are related to the contact and applied voltage, as contact voltage does not vary linearly with the applied voltage. In a grease-lubricated sliding contact...

... cause of bearing failure. This article establishes the Reynolds equation and energy equation of the oil film based on the theory of dynamic pressure lubrication of sliding bearings. The equation was numerically solved based on the finite difference method. It determines the rotational speed ratio...

... absorption. Nevertheless, the effects of moisture absorption on the wear properties of FRPCs are more complicated, which are depending on the fiber length and sliding conditions. With the short fiber reinforcements, moisture absorption deteriorated the wear resistance under all the testing conditions...

... a microhardness tester by the application of 100 g load and with a dwell time of 15 s for each measurement. The wear resistance of the deposited clad layers was characterized by conducting dry-sliding wear tests on a pin-on-disc wear test apparatus according to the ASTM G99 wear testing standards. Figure 3...