... roughness and asperities surfaces wear Peng et al. [ 28 ] predicted the erosion of straight pipes, elbows, plugged tees, welded joints and reducers which are developed by Det Norske Veritas (DNV) in 2007. This model is expressed by Eq. (30) . (30) E R = C ⋅ F ( θ ) ⋅ V p n...

... during static stages, thereby extending the life of the part. Currently, an increasing number of studies are focusing on small oscillatory movements or vibrations. However, the impact of intermittent motion cycles on the film thickness and wear in the contact area still needs to be investigated. Optical...

... degradation were obtained. The thermal degradation was evaluated using thermogravimetric analysis (TGA) to find improved resistance toward degradation due to the formation of estolides. Furthermore, tribological properties like wear characteristics, load carrying capacity, and oxidative stability were studied...

... conductivity, wear and corrosion resistance, among various other attributes. The limits described above place restrictions on the use of these alloys in various applications. Currently, various methods are being employed to efficiently address and alleviate those limitations through the utilization...

... the failure mode as a mixed brittle and ductile fracture. The wear-rate of the heat-treated additively manufactured maraging 300 steel decreases as the LED increases from 61.41 to 92.1 J/mm 3 and a further rise in LED from 92.10 J/mm 3 to 166.66 J/mm 3 , the wear-rate increases. The wear-rate rises...

... and an in-house-designed jet slurry tribometer. The steel was homogenized at 1100 °C for 40 hours and then thermal ageing was performed at 475 °C, 550 °C and 625 °C for 4 hours. The cavitation test results showed a lower wear rate was obtained under TAT at 475 °C, followed by TAT at 550 °C, and a higher wear rate...

.... This study is based on the previously established quantitative structure-property relationship - multiple linear regression (QSPR-MLR) model. Then, it employs comprehensive factor scores to assess and rank the anti-wear properties and oxidation stability of 53 vegetable oils with diverse fatty acid...

... organic molybdenum friction lubricant additives tribo-chemistry lubrication mechanisms wear wear mechanisms Lubrication is a time-honored technology applied widely in daily life, industries, engineering, machining, and some harsh environments such as nuclear reactors and spacecrafts in order...

...Neonila Levintant-Zayonts; Grzegorz Starzynski; Stanislaw Kucharski NiTi exhibits an excellent wear resistance, which can be further enhanced by ion implantation. However, there are some limitations to the implantation effects: only a thin layer of about 100 nm can be created. In this paper...

... 02 07 2024 02 07 2024 05 08 2024 Graphical Abstract Figure sulfur- and phosphorus-free organic molybdenum tribological properties tribochemistry films friction lubricant additives wear wear mechanisms In order to increase the fuel economy and elongate...

.... Further, in vitro wear behaviors of the coatings were evaluated using a pin-on-disc wear tester in simulated body fluid. The results reveal that 40Ti-HAP coating possesses superior wear resistance compared to 60Ti-HAP, Ti, and HAP coatings, attributed to higher surface hardness and higher shear strength...

... hardness measurements of the weld joints are performed. The surface roughness and wear behavior of the coatings are also studied. Nanoscale wear phenomena and consequent phase transformations are studied using molecular dynamics simulations. The results show that 312 and 316 stainless steels are suitable...

... current (50 to 300 A) effects on friction behavior and wear mechanism, the instantaneous current-carrying friction tests were performed with Al 1060 and Brass H62. Given the short nonlinear friction-induced signals, the friction behavior, including the time-domain information and system state...

...) and perpendicular to the build direction (PBD)) on the wear behavior of maraging steel fabricated by laser powder bed fusion (LPBF). The results are also compared with conventional hot forged samples. The pin-on disc equipment was used to conduct the wear experiments with an EN31 steel disk as the counter body...

... (FMWCNTs) blended palm oil compared to mineral oil. Steel bearings are commonly used to minimize the effect of dynamic loads coming from the driven end in sliding/rolling conditions of the bearing. The wear severity on the bearing surfaces was examined using a scanning electron microscope (SEM) coupled...

...Alessandro M. Ralls; Jacob Frizell; Pradeep L. Menezes In this work, laser shock peening (LSP) was utilized as a surface-processing technique to modify the tribocorrosion characteristics of cold-spray (CS) 316L SS. Results indicate that with the influence of LSP, the degree of wear–corrosion...

... in the food industry. The tests were carried out using samples of steel uncoated and coated with tungsten oxynitride in a pin-on-disc configuration using a tailored tribocorrosion cell. The uncoated AISI 431 presented good wear and corrosion resistance but presented tribocorrosion degradation, where...

... boundary delamination stick-slip wear nano-tribology interface boundary lubrication China Scholarship Council 10.13039/501100004543 N/A Japan Society for the Promotion of Science 10.13039/501100001691 22H00261 Improving energy efficiency is a critical focus in various...

... surfaces, these turbine blades need good wear resistance. With this motivation, rotary wear tests were performed under high vacuum at three different temperatures: room temperature, 400 °C, and 850 °C on as-built and heat-treated titanium alloy fabricated by the SLM process. The parameters like the speed...

..., approximately 2.0 µm thick, were formed through controlled anodization and annealing, composed of Ti and Nb oxides. The compact oxide film at the nanotube/substrate interface provided corrosion resistance, lubricating properties in worn tracks, and improved wear resistance. The nanotubes exhibited a lower...