...K. Rajesh Kannan; R. Vaira Vignesh; M. Govindaraju Copper matrix incorporated with solid lubricant and hard ceramic reinforcement is a proven potential material for wind turbine brake pad applications. Though brake pads as bulk composites possess high wear resistance, hard ceramic reinforcements...

...Ekin Selvi; Mertcan Kaba; Faiz Muhaffel; Ali S. Vanli; Murat Baydogan Low wear resistance of AZ91 alloy is the main factor limiting its more common use in industrial applications. It is therefore the micro-arc oxidation (MAO) process is mostly applied to the alloy to improve its wear resistance...

...Munish Kumar Gupta; Recep Demirsöz; Mehmet Erdi Korkmaz; Nimel Sworna Ross The application of stainless steel 420 is noted in various industrial sectors such as aerospace, automobile etc. However, the wear mechanism of stainless steel 420 is greatly affected by the use of 100Cr6 balls due...

... coatings showed enhanced hardness, scratch and galling resistance at room temperature. Tribological tests were carried out under two contact conditions, i.e., sliding contact for galling resistance and reciprocating wear studies. The PU-based nanocomposite coatings showed enhanced galling resistance...

... tests were performed at room temperature using a reciprocating tribometer at a sliding speed of 1 m min −1 against a 6-mm diameter ZrO 2 ball. When sliding in air, the friction coefficient of Cu-based BMG decreases with the applied loads (5 N, 10N, and 20 N), and the wear behavior is mainly affected...

.... Austenitic stainless steel (ASS 308L) single thin walls were fabricated using ER308L filler wire having 1.2 mm diameter. The wear summary of the WAAM-processed 308L ASS under dry sliding at severe loading conditions is presented. Wear tests were done under dry (unlubricated) conditions, using a typical high...

...Pham Van Hung; Le Duc Bao; Nguyen Thuy Duong The commutator and brush of the motor are often worn during operation. The wear of commutator—brushes is influenced by various factors: current density, material, sliding speed, contact force, temperature, and environmental humidity, especially by humid...

.... Both the alloy and the composite were subsequently characterized using optical microscopy and scanning electron microscopy. They were further tested for mechanical properties and dry sliding pin-on-disk wear studies were carried out at three different loads at room temperature at 200 rpm up...

... lubrication friction hydrodynamic lubrication surface properties and characterization wear National Natural Science Foundation of China 10.13039/501100001809 51805131 52175165 It is a widely concerning issue to reducing friction and wear in engineering applications where surface...

...A. Tajdeen; A. Megalingam; M. Sivanesh Prabhu; M. Wasim Khan Influence of tungsten disulfide particles (WS 2 ) on the friction and wear behavior of Mg-AZ91 forms the objective of this work. Friction stir processing (FSP) has been used to fabricate FSP AZ91/WS 2 composite with various FSP passes...

... to be influencing performance sensitivity. Under the variable operating conditions, halloysite-based friction materials showed excellent wear resistance, and wollastonite-based friction composites with MgO enhanced the friction coefficient (∼0.43–0.61) while exhibiting minimum load-speed sensitivity. The gradient...

..., and a load of 294 N. The diameters of wear scars on the three lower balls after each test were recorded and the average values were determined [ 20 ]. Fig. 1 The structure of the nitrogen-containing heterocyclic derivatives The structure of the nitrogen-containing heterocyclic derivatives...

... containing iron oxide (Fe 3 O 4 ) nanoparticles. The chips collected from the turning process of composites were cold compacted and hot extruded into cylindrical rods. The extruded materials were investigated for their tribological response under dry sliding conditions. The wear tests were performed using...

... to be used with a reciprocating wear test. This research considers the effect of tin and copper layer thickness, including the lack of a tin layer, on the tribological behavior. Among coatings tested, a thin coating of copper with no tin resulted in the least wear. A thicker coating of copper significantly...

... experimentally investigated using a four-ball wear test machine. The results indicated that the vibration velocity tends to increase with the sliding velocity. With a lower combination of ratio of the vibration velocity to the sliding velocity and the specific film thickness, lower friction coefficients were...

... performance, and some critical issues like the influence of running-in period and the necessary superficial conditions of the rolling track to apply the friction control products are neglected. Thus, the objective of this work is to conduct dry twin-disc wear tests with different number of cycles...

...Chang-Guang Zhou; Li-Dong Wang; Jun-Wan Shen; Chuan-Hai Chen; Yi Ou; Hu-Tian Feng Owing to the measurement difficulty and the required time needed to analyze wear processes of ball screws, very few studies have been reported. Here, on the basis of a test bench and a Taylor Hobson surface...

...Dogan Simsek This study investigated the wear performances of ZrO 2 reinforced 316L stainless steel matrix composite materials. The 316L matrix was mechanically alloyed by adding three different amounts (1 wt%, 2 wt%, and 3 wt%) of ZrO 2 for 60 min. Mechanically alloyed powders were shaped through...

... hardness, especially microdrilling. The primary studies majorly used uncoated drills for microdrilling Inconel 718, which leads to low tool life due to frequent tool wear. Microdrills bearing different coatings have not been investigated for their efficiency and mechanism of wear in microdrilling of super...

...Gongjun Cui; Fangzhou Li; Canxing Bian; Guijun Gao; Ziming Kou The high-temperature wear resistant CoCr matrix coatings reinforced by the Nb element were fabricated on the Inconel 718 alloy by using the hot-pressed sintered method. The effects of Nb on the microstructure, hardness, and high...