... 2022 24 12 2022 27 12 2022 27 01 2023 wear surface topography graphite content friction vibration wind pitch slip ring electrical contacts surfaces wear mechanisms National Natural Science Foundation of China 10.13039/501100001809 52005226 Natural Science...

... to the adhesion and abrasion mechanism generated between the contact surfaces. In this work, the ball-on-flat experiments were performed on stainless steel-420 versus 100cr6 friction pairs under dry, minimum quantity lubrication (MQL) and pool conditions. Then, the wear studies in terms of volume loss, profile...

... to the metastability of ASS during plastic deformation. At severe stresses, plastic deformation of sliding surfaces is more prevalent. Ferrite (%) concentration decreases with the increasing load due to increased plastic deformation, which converts austenite to martensite. As deformation wear debris rolls, it hardens...

... particles break away three-body abrasive wear is produced. electrical plating copper oxide surface finish tribological behavior tin oxide aluminum adhesion coatings contact dry friction surface roughness and asperities surfaces wear wear mechanisms In this research, a total of five...

... strength, toughness, and low surface roughness [ 10 , 38 , 39 ]. An extensive range of BMG families have to date been subjected to extensive wear testing, often producing contradictory results when compared both to theoretical predictions and between differing testing configurations. Wear testing has been...

...Shijun Wang; Lingsong Fan; Jingwei Wu; Pengyang Li A side contact model of joint is proposed, which considers the horizontal distance distribution and side contact between the asperities on the contact surfaces. The Leica DCM3D microscope is applied to collect the profile data of the grinding...

...Luanxia Chen; Zhanqiang Liu; Yukui Cai; Bing Wang The cylinder block/valve plate interface in the axial piston pump has been proven to be easily worn out, which will increase power loss and reduce its efficiency. The valve plate surface is required to be manufactured with low viscous friction...

... that the nanolubricant produced a tribofilm reduced the friction for 40% and wear 90%, while the electrical conductivity remained to be stable during tribotesting. Surface characterization of the tribofilm showed that there was a layered pyrophosphate on the wear track. The in situ impedance study about tribochemical...

...Siyu Wang; Rupeng Zhu Based on “slice method,” the improved time-varying mesh stiffness (TVMS) calculation model of helical gear pair with tooth surface wear is proposed, in which the effect of friction force that obtained under mixed elastohydrodynamic lubrication (EHL) is considered in the model...

... velocity, normal force, and humidity. The pattern is a square lattice of square cavities with sub-mm spacing. We find that dynamic friction decreases compared to nonpatterned surfaces, since stress concentrations lead to early detachment, and that stick-slip behavior is also affected. Friction increases...

... friction sliding surfaces wear fretting This study is directly related to components used in high-temperature gas cooled reactors (HTGRs) (800 °C) and very high-temperature gas cooled nuclear reactors (850 °C and above) (VHTRs). In particular, valve stems and seats, control rod drive mechanisms...

... principle, the influences of the surface wear of guideway on its straightness attenuation were explored and an analytical prediction model for the geometric accuracy attenuation of slide guide was established. The reciprocating wear test of slide guide samples was performed with a test bench to explore...

...F. J. G. Silva; R. C. B. Casais; A. P. M. Baptista; M. J. Marques; V. M. C. Sousa; R. Alexandre There are several ways to characterize the wear resistance of coatings in the laboratory, almost all of them applying relatively low contact pressure, both punctually and over surface contact. Pin...

...Vimal Edachery; V. Swamybabu; Anand Gurupatham; Manikandan Paramasamy; Satish V. Kailas Surface topography is a critical parameter that can influence friction and wear in engineering applications. In this study, the influence of surface topography directionality on seizure and scuffing initiation...

... and the characteristics between the reticle and the chuck are studied in this article. First, based on the Kogut–Etsion contact model and the Majumdar–Bhushan (MB) fractal contact model, the maximum static friction coefficient model between nano-scale surfaces was established. Then, the surface morphology parameters...

...S. Sklenak; D. Mevissen; J. Brimmers; C. Brecher In a rolling contact, the tribological properties in terms of friction, wear, and fatigue are significantly influenced by the surface roughness. Due to solid contact of the surfaces in the contact area, the roughness and thus also the tribological...

...Julia K. Hoskins; Min Zou This study used 2-photon three-dimensional lithographic printing and replica molding to fabricate a micro-texture based on the Ocellated Skink. The fabricated surface texture was studied for friction and wear behavior using linear reciprocating tribological tests...

... for projected applications. However, hard ceramics reinforcements decrease toughness and ductility of soft matrix and restrict their wide applications. The surface metal matrix composites (SMMCs) preserve the matrix properties with added advanced surface properties by reinforcing particles only in the surface...

... agreement of torque transmission for different groove profiles with experiments. Finally, temperature distribution patterns in different three MR clutches and an optimization of the radial groove profile have been analyzed numerically. Fig. 19 Surface plot of temperature distribution in the MR clutch...

..., indentation craters, and ploughing craters were the main surface damage features. The shear craters predominated at the impact angle of 45 deg whereas the indentation craters predominated at 90 deg. During the steady-state of erosion, the rail damage was mainly composed of craters, platelets, and cracks. Both...