... was investigated, as well as its friction and wear resistance performance. The Vickers microhardness of the carbon-coated NiTi alloy decreased with the flame coating time, which was identified to be caused by the inherent thermal treatment during the flame coating process. The tribological test results indicated...

... of WCO-based sustainable grease from 1560N to 2450N. The average wear scar diameter of WCO based and WCO + (GO + 6 wt.%) grease is reduced by 13.87% and 19.30% respectively, compared to that of commercial (MIDCO AP-3) grease. The results revealed that rheological properties of the WCO-based sustainable...

... the inclusion of Ag notably decreased the coefficient of friction (COF) at elevated temperatures, no distinct trend in COF was observed for the tests conducted at 25°C. The composite coating containing 5 vol.% Ag exhibited superior friction and wear performance at 25°C and 450°C. The addition of Al 2 O 3...

... decreases friction coefficients compared to dry conditions. Wear tests show that 3D printed PEEK parts outperform extruded rod samples, displaying superior wear resistance. Surface texture and properties directly affect contact characteristics and lubricant storage. In journal bearings, varying infill...

... heat input and minimal spatter generation. A single thin-walled structure was created by fabricating Super Duplex Stainless Steel (SDSS) 2507 and Inconel (IN) 718 utilizing a filler wire with a diameter of 1.2 mm. This manuscript presents the summary of wear on the dissimilar alloy wall manufactured...

...J. C. Atwal; P. Ganai Rigid bore aerodynamic journal bearings are widely used in precision machinery, high-speed small turbomachinery, etc., to support and guide the motion of shafts. Due to several starts/stops of the machinery, these bearings may wear out in the service, and subsequently...

... analysis shows that the wear-rate of the composite decreases with the increase in HEA particles, reaching a maximum reduction with 8 wt% HEA reinforcement. SEM observations of the worn surfaces reveal features such as pronounced grooves, adhesive wear, ploughing effects, wear debris, and microcracking...

... coated tools were deposited by PVD HiPIMS. Moreover, there is a gap in the literature regarding the milling of Inconel ® 718 and the selection of ideal machining parameters. Based on this, the surface roughness ( R a ), the evolution of flank wear, wear mechanisms, and the tool lifespan were analyzed...

... in the fan section of the engines, but little attention has been given to the potential of orienting the fibers in the normal (i.e., out-of-plane) direction relative to the wear surface to leverage the anisotropic properties of FRP composites. This study investigates the impact of fiber orientation...

...K. Venkata Rao Effective and precise prediction of tool wear plays a key role in improving machining efficiency, and product quality and reducing production cost. The majority of earlier studies have depended on limited experimental data, which may not be sufficient to estimate tool wear...

... and the smallest specific wear-rate at a PV value of 20 MPa m/s. The friction coefficient of composites decreases with an increase in ambient temperature from room temperature to 70 °C at a sliding speed of 0.1 m/s but increases at a sliding speed of 0.5 m/s. Analysis of variance (ANOVA) results indicate that all...

... and limited thermal conductivity, Inconel 718 is a nickel superalloy that is regarded as a challenging material to process. Due to the flexibility of milling, this is the most commonly used process for machining INCONEL alloys. However, high levels of tool wear can be observed. Coatings can be deposited...

...Soni Kesarwani; Narayana Yuvaraj; Mahendra Singh Niranjan The cold metal transfer (CMT)-based wire arc additive manufacturing (WAAM) technique has limited wear applications compared to other manufacturing methods due to its lower wear resistance. However, integrating friction stir processing (FSP...

... conditions, particularly the stick-slip phenomenon. Through finite element analysis using abaqus and tribological tests, the impact of various factors on the friction and wear properties of cylinder components is examined. Findings reveal that optimizing the average friction coefficient, stick-slip amplitude...

... to be in between 10.5 N and 15.1 N implying adequate adhesive bonding between the deposits and the substrates. Microhardness and pin-on-disc tribo test results demonstrate a positive correlation between Co content and both hardness and wear resistance of the coatings. However, incorporating small amounts of Co...

... 2024 electric vehicles lubricants additives lithium-based lubricants water-based lubricants tribological property nanofluids PAO polyalphaolefin biolubricants grease lubrication wear According to the US Environmental Protection Agency (EPA), the world emitted approximately 50...

...Alican Boztepe; Ridvan Gecu AISI D3 cold-work steel was shallow and deep cryogenically treated and double-tempered at 150, 250, and 350 °C temperatures. Cryogenic processes transformed the retained austenite into martensite, while double tempering produced Fe-, Cr-, and W-rich carbides. The wear...

...Weipeng Zhang; Zhentao Xu; Jiajia Shen; Junxiang Wang; Yong Luo Ultra-high molecular weight polyethylene (UHMWPE) is often limited by poor tribological properties in artificial joints, leading to high wear-rates compared to metals and ceramics. This study explores the use of wollastonite, a natural...

... current (50–300 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...

...Raj Shah; Nikhil Pai; Gavin Thomas; Swarn Jha; Vikram Mittal; Khosro Shirvni; Hong Liang As modern devices and systems continue to advance, device wear remains a key factor in limiting their performance and lifetime, as well as environmental and health effects. Traditional approaches often rely...