Wear Experiments Research Articles

Experimental investigation of fretting wear of coated spring clip and inlet ring in land-based gas turbines at elevated temperature

The objectives of this investigation were to characterize the friction and fretting wear behavior of coated inlet ring and spring clip components used in land-based gas turbines at elevated (500 °C) temperature. In order to achieve the objective, a novel high temperature fretting wear apparatus (HTFWA) was designed and developed to simulate the conditions existing in a gas turbine. Sections of actual inlet ring and spring clip were cut from a gas turbine and used in the test apparatus. The test apparatus was used to investigate fretting wear of APS sprayed Cr3C2–NiCr (25% wt.), HVOF sprayed Cr3C2–NiCr (25% wt.), HVOF sprayed T-800 and APS sprayed PS400 coated inlet rings against HVOF sprayed Cr3C2–NiCr (25% wt.) coated spring clip. Fretting wear experiments were conducted with normal loads up to 400 N at a fixed displacement amplitude of 0.5 mm and frequency of 5 Hz. A proximity probe was used for in-situ wear depth measurement at the spring clip and inlet ring contact pair. The results indicate that the combination of PS400 coating on inlet ring and HVOF Cr3C2–NiCr on spring clip wear the least as compared to other combinations in both running-in condition and under steady state regime. PS400 also demonstrated a 50% reduction in coefficient of friction as compared to other coatings at 500 °C. Further, a theoretical approach was developed to estimate the evolution of wear depth with sliding distance for a cylindrical contact configuration using Archard's wear law. The experimental and theoretical results were found to be in good agreement with each other.

Wear behavior of 7075-aluminum after ultrasonic-assisted surface burnishing

Gradient nanostructure layer (GNL) is machined on 7075-aluminum by the ultrasonic-assisted surface burnishing (UASB) setup. Compared with the traditional burnishing, the advantages of UASB are discussed by the characterization of GNL. Furthermore, wear experiments with the samples machined by UASB and traditional burnishing are also performed, respectively. It introduces numerical simulation methods to investigate the varieties of grain sizes during UASB and reveal the relevant mechanism. The results exhibit that the obvious GNL forms on the sample surface after UASB, and the samples have ideal surface roughness and gradient hardness distribution. The dry wear experiments show that GNLs have good wear performances under low load, but poor wear performances under high load. Because GNL has high nanohardness, residual compressive stress and poor plasticity-toughness. These reasons result in such contradictory wear characteristics.

Tribo-Mechanical Behaviour of Ti-Based Particulate Reinforced As-Cast and Heat Treated A359 Composites

This study investigates the tribo-mechanical behaviour of as-cast and heat treated A359/ 6 wt.% Ti-based particulate reinforced homogeneous composites (TiB2, TiO2, and TiC) processed through modified stir casting technique. Metallographical observation on as-cast homogeneous composites revealed a uniform distribution of reinforcements throughout the cross-section. In heat treated composites, the tribo-mechanical properties were enhanced by the formation of spheroidized alpha eutectic Si. TiB2 and TiO2 exhibited superior interfacial bonding with Al-matrix, whereas TiC showed marginal wetting. Linear reciprocating wear experiments were performed on all as-cast and heat treated components by varying loads (15–55 N) and sliding distances (500–2500 m). Results revealed superior hardness (182.5 HV), tensile strength (271.6 MPa) and wear resistance for heat treated A359/TiB2 composite than TiO2 and TiC reinforced composites. The wear rate and coefficient of friction was observed to be dependent on the applied load and type of reinforcement particle in the composites. Worn surfaces of composites exhibited severe delamination wear mechanism.

Morphological studies and wear behavior of electro discharge coated steel

This paper elaborates on the deposition of tungsten and copper (W-Cu) material on the AISI 1020 steel substrate and the method used for deposition with its surface and wear characteristics. The tool electrode used is of tungsten copper (W-Cu) manufactured by powder metallurgy (PM) route with different ratios of tungsten and copper metal powders. The process carried out for deposition is by electro-discharge coating (EDC). In this, the tool electrode material is melted and deposited on the substrate by the application of heat energy due to sparking between the electrode and the substrate. Then a thick layer of W-Cu coating is formed on the substrate material. The substrate material of AISI 1020 steel was cut in cylindrical shapes of 10 mm diameter and height 10 mm by wire cut EDM machine and was then surface grinded for the accuracy and polished surface. The cylindrical size was considered for holding the specimen in the clamping device of wear testing machine easily during wear testing. The wear behavior of the coated samples is assessed by the pin on disc method. The effect of mixing ratio, micro hardness, Scanning Electron Microscope (SEM), Energy Disperse Spectroscopy (EDS) analysis, Coefficient of friction (COF) etc., for different composition coated samples has been investigated. The results show that the micro hardness achieved in the range 51-84HV for coated specimens of W-Cu of different composite substrates. The COF was achieved in the range of 0.16 to 0.31 after wear experimentation. The microstructures of the coated samples are analyzed before and after wear by using SEM and EDS.

Parametric analysis of tribological for gear materials behaviour and mechanical study of cobalt metal powder filled Al-7075 alloy composites

The research article presents the results obtained from the tribological behavior and mechanical characterization of Co metal powder (0–2 wt%) reinforced Al7075 alloys composites for gear materials fabricated via high vacuum casting method. The wear experiments are conducted on the multi specimen tester in lubrication condition. The specimen of fabricated composite is used as new developed material in automotive industry for fabricating of gear. Important variation in behaviour of these materials is possible as a result of cobalt particulate filler introduction. The hardness (151.2–196 HV), flexural strength (341–498.2 MPa), compressive strength (290–490 MPa), tensile strength (235–394 MPa) and impact strength (20–65.5 J) of particulate reinforced alloy composites are showing improved in mechanical characteristics with the increased in cobalt metal powder from 0 wt% to 2.0 wt% respectively. The result of experiment that the cobalt metal powder particulate composites exhibited a minimum the wear rate compared to base alloy and the wear resistance of composite improves it. Finally, the results were investigated that the analysis of microstructure, mechanical and wear behaviour of cobalt metal powder filled Al7075 alloy composite.

Tribological characteristics of hybrid AA2024 alloy composite reinforced with AlN and Gr particulates

The present experimental study investigates the Tribological characteristics of hybrid aluminium metal matrix composite comprising of AA2024 aluminium alloy as matrix material reinforced with varying amount (0, 2, 4 and 6 wt.%) of AlN particulates and fixed amount (2 wt.%) of graphite particles (i.e. four composite samples like AAN-0, AAN-2, AAN-4 and AAN-6). The composite specimens are fabricated through conventional stir casting technique. Pin-on-disk wear testing apparatus is used to perform the sliding wear and friction experiments according to ASTM-G99 standard. The various controllable factors like normal load (5, 20, 35, 50 N), sliding velocity (0.654, 1.308, 1.962, 2.616 m/s), sliding distance (784.8, 1569.6, 2354.4, 3139.2 m) and environment temperature (20, 30, 40, 50 °C) are used to analyze the specific wear rate and coefficient of friction under steady state conditions. Taguchi experimental design is applied to find out the significant level of each factor influencing the specific wear rate. From the steady state experimentations, it is found that both the Tribological properties (specific wear rate and coefficient of friction) have been significantly improved with the amount of AlN particles. From taguchi experimental analysis, it is concluded that the order of significance of input control variables is as follows: normal load, sliding distance, sliding velocity, filler content and environment temperature.

Some investigations on surface quality indicators for OHNS die steel machined with suspended powder EDM process

The study focuses on the evaluation of surface quality characteristics of oil hardened non shrinking die steel surface machined with suspended powder electrical discharge machining process. Pure copper metal is used as an electrode material, and tungsten powder is used as suspended medium for the purpose. Machining experiments were carried out by varying one parameter at a time. After each test, the machined surface is analysed for evaluating its surface roughness and microhardness values. It is found that combination of 4 A gap current, 12 μs pulse on span and 7 μs pulse off span will result in optimum surface quality indicators for the SPEDM process. Also, dry sliding wear experiments were carried out on the machined surface to evaluate the frictional force and coefficient of friction. Spectroscopic analysis and energy dispersive X-ray diffraction analysis on the machined surface indicate a considerable rise in carbon and tungsten content on the recast white layer of the machined surface. Scanning electron microscopic analysis of the machined surface revealed the presence of compounds of tungsten on the recast white layer. Also, micro-cracks were observed on the machined surface which is due to higher gap current setting during EDM process.

Some investigations on surface quality indicators for OHNS die steel machined with suspended powder EDM process

The study focuses on the evaluation of surface quality characteristics of oil hardened non shrinking die steel surface machined with suspended powder electrical discharge machining process. Pure copper metal is used as an electrode material, and tungsten powder is used as suspended medium for the purpose. Machining experiments were carried out by varying one parameter at a time. After each test, the machined surface is analysed for evaluating its surface roughness and microhardness values. It is found that combination of 4 A gap current, 12 μs pulse on span and 7 μs pulse off span will result in optimum surface quality indicators for the SPEDM process. Also, dry sliding wear experiments were carried out on the machined surface to evaluate the frictional force and coefficient of friction. Spectroscopic analysis and energy dispersive X-ray diffraction analysis on the machined surface indicate a considerable rise in carbon and tungsten content on the recast white layer of the machined surface. Scanning electron microscopic analysis of the machined surface revealed the presence of compounds of tungsten on the recast white layer. Also, micro-cracks were observed on the machined surface which is due to higher gap current setting during EDM process.

Wear experiment of ball joints under multi-axis loads using special developed fixtures

A method for measuring wear performance of a ball joint is proposed, and a method for designing a special fixture for ball joint wear measurement with four-axis is presented. Based on the proposed methods, a test rig for measuring wear performance of a ball joint is developed and manufactured. The offline control strategy to the special fixture is used to reproduce the load spectrum of the ball joint acquired in the real load conditions. One ball joint taken from an automotive suspension is used to measure the wear characteristics using the developed test fixture and hydraulic actuators. The wear properties of the ball joint before and after experiment are compared and analysed. It is shown that the developed fixture and the proposed test procedures can be used for the wear measurement of a ball joint with standard force or torque actuators at lab.

Analysis of the Wear-Resistance Characteristics of Bionic Ridge Structures

HighlightsBionic technology can be applied to resolve agricultural engineering problems.Pangolin Squama and Chlamys Farreri shells possess excellent wear-resistance.Bionic ridges can improve sample wear-resistance.Abstract. Consistent soil contact rapidly wears the soil-engaging components of agricultural machinery, such as ploughs and subsoilers. A bionic method was applied to their structural design to improve component wear resistance. Some animal organs possess excellent wear-resistant structures which can provide design inspiration for improving the wear-resistance of agricultural mechanical parts. Previous research found that many ridges exist on Pangolin squama and Chlamys Farreri shell surfaces. Those ridges cause Pangolin squama and Chlamys Farreri shells to exhibit excellent wear-resistance. Therefore, these ridge structures were applied to the design of experimental subsoiler samples (bionic samples) to enhance their wear-resistance. An abrasive wear tester was utilized to conduct abrasive wear experiments under special experimental conditions. These experimental conditions involved sliding speed, soil particle size, moisture content, and space between the ridges. Finally, nine experiments were conducted that subjected the bionic and flat surface samples to different experimental conditions, and their respective mass-loss quantities were measured. Results show that bionic sample mass loss was less than that of the flat surface samples under the same experimental conditions; bionic sample wear-resistance improved by 77%, 73.8%, 66.9%, 45.4%, 58.9%, 65.5%, 33.1%, 66.4%, and 42.6% when compared with flat surface samples under the same experimental conditions. Orthogonal test results reveal that the soil particle size most significantly affected sample wear-resistance, followed by the space between bionic ridges and the sliding speed. One reason that bionic samples exhibited excellent wear-resistance is that the soil particles underwent a “guiding effect” and a “rolling effect” over the bionic ridge surface, thereby reducing the “micro-plowing” that soil particles generated when moving over the contact surface. Mutual interference among soil particles also reduced wear. Part of the soil particles rushing over the bionic sample surface rebounded back; the rebounded soil particles collided with incoming soil particles, then the speed and kinetic energy of all of the particles decreased and sample surface abrasion declined. Moreover, “vortexes” generated by sample surface air and ridges lead to an “air cushion” effect which can lessen the number of sample surface soil particles, and bionic ridge sample abrasions can be significantly reduced. Abrasion experiment results analysis indicates that bionic ridges distributed on subsoiler sample surfaces can significantly improve wear-resistance. The bionic design method provides a new approach for increasing the wear-resistance of the soil-engaging components of agricultural machinery. Keywords: Abrasive wear, Bionic ridge, Optimal design, Wear-resistance.

Effect of modified tabular alumina aggregates on mechanical properties and microstructure of Al2O3–Al–C material

Al2O3–Al–C material was prepared by tabular alumina aggregates (1–3 mm, 0–1 mm, 0.045 mm), modified tabular alumina aggregates (0.5–3 mm), ultra fine α-Al2O3 powder, aluminum powder, flaky graphite as the raw materials, and thermosetting phenolic resin as binder. The coating strength of the modified tabular alumina aggregates was tested, and the physical properties of the specimens at room and high temperature were examined. The phase composition and microstructure of the specimens were analyzed by XRD and SEM. The results showed that: (1) After mixing and wear experiment, the dropping ratio of the coated Al particles was 2.58%, and the coating strength was fairly good; (2) The coated Al particles reacted with C and N2in situ generated acicular and fibrous Al4C3 and AlN, enhancing the bonding strength between the aggregates and matrix, improving the hot modulus of rupture (HMOR) of the material. In addition, Al4C3 and AlN have a lower coefficient of thermal expansion and higher thermal conductivity, which can absorb the thermal expansion of the particles, alleviate the thermal stress inside the material, and improve the thermal shock resistance of the material.

Wettability, Thermal and Sliding Behavior of Thermally Sprayed Fly Ash Premixed Red Mud Coatings on Mild Steel

The present experimental work reveals the surface characteristics like wettability, thermal and sliding wear behaviour of plasma-sprayed red mud (RM) coatings premixed with fly ash (FA). Varying weight % of FA (10, 20, 30 and 40)—RM composite powder is used as precursor for coating. Atmospheric plasma-sprayed coatings are developed at different operating power like 5 kW, 10 kW, 15 kW and 20 kW separately on mild steel substrate. Tribological behaviour viz. sliding wear properties are studied at distinct operating load (10N, 15N, 20N, 25N), speed (40 rpm, 50 rpm, 60 rpm, 70 rpm) and track diameter of 100 mm using a pin on disc tribometer for duration of 30 minutes with 3 minute gap period for each experiment. The DSC and TGA experiments of the coatings are performed to understand the high temperature application areas. The contact angle result signifies the wettability of the prepared coatings is principally a function of composition. The reaction of surface roughness and spraying power is in-significant on water contact angle (WCA). In conclusion, the sliding wear experiments are optimized by Taguchi method to ascertain the influencing parameter on wear.

Corrosion and high-temperature tribological behavior of carbon steel claddings by additive manufacturing technology

High-speed steel (HSS), traditionally used in the hot rolling industry, suffers from the problem of wear and corrosion. The integral changing of HSS, however, is expensive. For modifying the surface property of metal materials, submerged arc welding, among the industrial additive manufacturing technologies, is employed. In this study, we aim at improving the resistance of carbon steel cladding against corrosion and wear. To reduce cost, the HSS matrix is replaced by carbon steel. Electrochemical corrosion and high-temperature dry sliding wear experiments are implemented to study the corrosion and tribological behavior of HSS and surface-modified claddings. The wear and corrosion behaviors are characterized by potentiodynamic polarization, electrochemical impedance spectroscopy, wear rate, coefficient of friction, and worn surface morphology. The experimental results indicate that the corrosion current density (Icorr) of carbon steel claddings, ranging from 11.023 × 10−3 to 3.372 × 10−3 mA∙cm−2, is lower than that of the HSS alloy (19.247 × 10−3 mA∙cm−2). The passive film resistance of prepared carbon steel cladding-3 (1870 Ω∙cm2) is in fact larger than the resistance of HSS (1075 Ω∙cm2). The corrosion resistance of surface-modified carbon steel claddings is better than that of the HSS. The wear rates of carbon steel cladding-2 (1.99 × 10−7 mm3·N−1·mm−1) and carbon steel cladding-3 (2.49 × 10−7 mm3·N−1·mm−1) approximate the wear rate of HSS (1.59 × 10−7 mm3·N−1·mm−1). Moreover, the wear width of prepared carbon steel cladding-3 (550 μm) is slightly larger than that of HSS (500 μm). The wear resistance of carbon steel cladding-3 approximates that of HSS.

Investigation on Micro-milling of Ti–6Al–4V Alloy by PCD Slotting-Tools

Ti–6Al–4V is characterized by various protruding characteristics and has been found extensive applications in aerospace, biomedical device industries and other fields. However, these properties in turn bring about the increase in cutting forces, make the chips intractable to control and also shorten the tool service life, etc. A preliminary exploration of micro-milling of Ti–6Al–4V by PCD slotting-tool (MST-PCD) was launched in this paper. The most prominent advantage was the PCD slotting-tools could reach a higher linear velocity even the spindle speed was lower, which can strongly ensure the strength and stiffness of micro cutters and suppress the vibration occurrence due to the high spindle speed. The machining processes of using PCD slotting-tool and carbide micro-end mill (MEM-WC) was compared in detail. The wear experiments were conducted to confirm the effectiveness and advantage of MST-PCD. The cutting forces and surface quality, as well as the effects of tool wear on these output responses were investigated. Then model establishment and multi-objective parameter optimization were performed based on the orthogonal experiment results. Finally, verification experiments were also carried out to confirm the effectiveness of the developed models and MST-PCD. The findings in this paper can also be applied to other difficult-to-machine materials.

Properties and High-Temperature Wear Behavior of Remelted NiCrBSi Coatings

Remelted NiCrBSi coatings were examined using optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, x-ray diffraction analysis, microhardness and wear testing. After wear tests, the surfaces of the worn samples were examined by 3D profilometry and scanning electron microscopy to investigate the effects of load and temperature on the coefficient of friction and wear resistance. In all the wear experiments, there was a momentary increase in the wear volume and a momentary decrease in the average coefficient of friction values at the elevated test temperatures. This behavior was caused by the stable oxide layer formed on the surface as a consequence of the elevated test temperature. Three dominant wear mechanisms were observed with the NiCrBSi coatings: delamination at room temperature, spalling and adhesion at 250°C, and oxidation at 450°C, whereas in the uncoated samples there was delamination at room temperature, and micro-cracking and oxidation, both at 250°C and 450°C. Remelted NiCrBSi coatings provided better wear resistance and lower coefficient of friction than uncoated STKM-13A steel, especially at higher temperatures.

Tribological Properties of Polyether–Ether–Ketone-Based Coating under Mixed and Boundary Aviation Kerosene-Lubrication Condition

Because of its excellent tribological performance, polyether–ether–ketone (PEEK)-based coatings have been used extensively under mixed and boundary water-lubrication conditions. To verify that the PEEK-based coating is applicable to aviation kerosene, one advanced coating was proposed and two typical metals, namely, alloy steel 38CrMoAlA and tin bronze ZQPb17-4-4, were selected as counterparts. Four sets of experiments that involved a scuffing (step load) and Stribeck curve (step speed), constant load, and strengthened load were carried out, which showed that the counterpart material’s properties, such as its hardness, thermal conductivity, and composition, had an important effect on the tribological performance of the PEEK-based coating. Scuffing experiments showed that the PEEK-based coating against ZQPb17-4-4 exhibited better scuffing performance. Stribeck curve experiments showed that the PEEK-based coating against 38CrMoAlA was under the mixed lubrication condition over a wider range of speeds, and wear experiments (constant load and strengthened load) showed that the PEEK-based coating against 38CrMoAlA exhibited a relatively low coefficient of friction and low wear rate. The formation and appearance of the tribofilm on the surface of the counterparts influenced the wear mechanism of the PEEK-based coating. The PEEK-based coating showed excellent properties, especially when rubbed against 38CrMoAlA.

Effect of pre-wear on the rolling contact fatigue property of D2 wheel steel

In this work, the effect of pre-wear under air condition on the rolling contact fatigue life (RCF) of D2 wheel steel under oil lubrication was thoroughly studied based on the rolling wear experiment. The results show that dry pre-wear can improve the RCF life of wheel sample under oil lubrication during RCF process before the sample surface forms the fatigue wear cracks during pre-wear process. Dry pre-wear can change largely pre-wear surface, such as increasing surface layer dislocation density, refining ferrite grains, dissolving lamellar cemetite in pearlite, forming fibrous microstructure and reducing surface roughness. These microstructural changes contribute to an improvement of the surface strength and RCF life of samples. However, when fatigue wear occurs on the contact surface during pre-wear process. The fatigue wear crack causes the flaking of hardening layer, and is a RCF crack source to accelerate the formation of the RCF crack. It can lead to reduce the RCF life of the sample.

Properties and High Temperature Dry Sliding Wear Behavior of Boronized Inconel 718

Silicide-free boride layers were grown on Inconel 718 Ni-based superalloy surface at 850 °C, 950 °C, and 1050 °C for 2, 4, 6 hour by the powder pack-boronizing process using nano-sized B4C powders. The coatings were examined using optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, X-ray diffractometry, 3D profilometry, and microhardness measurements. Wear experiments were carried out on untreated and boronized Inconel 718 using a ball-on-disk tribometer under dry sliding conditions at temperatures of 25 °C, 400 °C, and 750 °C. An increase in boronizing temperature and duration increased the thickness and hardness of the obtained boride layers, which resulted in low coefficient of friction values and decreased wear rates. Scanning electron microscopy images of the worn surfaces revealed two-body abrasion as the effective wear mechanism in the untreated samples, and three-body abrasion assisted by microcracking and spalling as the dominant wear mechanism in the boronized samples. A transition from mild to severe wear occurred in the untreated samples, while wear rates remained low in the boronized samples up to 750 °C. In conclusion, boronized Inconel 718 was capable of sustaining its boride layers under 5 N for 1800 m at wear-test temperatures up to 750 °C.

Effect of machinability, microstructure and hardness of deep cryogenic treatment in hard turning of AISI D2 steel with ceramic cutting

This study examined the hard turning of AISI D2 cold work tool steel subjected to deep cryogenic processing and tempering and investigated the effects on surface roughness and tool wear. In addition, the effects of the deep cryogenic processes on mechanical properties (macro and micro hardness) and microstructure were investigated. Three groups of test samples were evaluated: conventional heat treatment (CHT), deep cryogenic treatment (DCT-36) and deep cryogenic treatment with tempering (DCTT-36). The samples in the first group were subjected to only CHT to 62 HRc hardness. The second group (DCT-36) underwent processing for 36h at −145°C after conventional heat treatment. The latter group (DCTT-36) had been subjected to both conventional heat treatment and deep cryogenic treatment followed by 2h of tempering at 200°C. In the experiments, Al2O3 + TiC matrix-based untreated mixed alumina ceramic (AB30) and Al2O3 + TiC matrix-based TiN-coated ceramic (AB2010) cutting tools were used. The artificial intelligence method known as artificial neural networks (ANNs) was used to estimate the surface roughness based on cutting speed, cutting tool, workpiece, depth of cut and feed rate. For the artificial neural network modeling, the standard back-propagation algorithm was found to be the optimum choice for training the model. Three different cutting speeds (50, 100 and 150m/min), three different feed rates (0.08, 0.16 and 0.24mm/rev) and three different cutting depths (0.25, 0.50 and 0.75mm) were selected. Tool wear experiments were carried out at a cutting speed of 150m/min, a feed rate of 0.08mm/rev and a cutting depth of 0.6mm. As a result of the experiments, the best results for both surface roughness and tool wear were obtained with the DCTT-36 sample. When cutting tools were compared, the best results for surface roughness and tool wear were obtained with the coated ceramic tool (AB2010). The macroscopic and micro hardness values were highest for the DCT-36. From the microstructural point of view, the DCTT-36 sample showed the best results with homogeneous and thinner secondary carbide formations.

Wear Behavior Performance of Polymeric Matrix Composites Using Taguchi Experiments

This research estimates the effect of independent factors like filler (3%, 6%, 9%, 11% weight fraction), normal load (5N, 10N, 15N), and time sliding (5,7 , 9 minutes) on wear behavior of unsaturated polyester resin reinforced with jute fiber and waste eggshell and, rice husk powder composites by utilizing a statistical approach. The specimens polymeric composite prepared from resin unsaturated polyester filled with (4% weight fraction) jute fiber, and (3%, 6%, 9%, 11% weight fraction) eggshell, and rice husk by utilizing (hand lay-up) molding. Dry sliding wear experiments were carried utilizing a standard (pin on disc test setup) following a well designed empirical schedule that depends on Taguchi’s experimental design L9 (MINITAB 16) with the determined (S/N) ratio and analysis of different (ANOVA) optimal factors to minimize the wear rate. Results exhibit that the presence the of 11% weight fraction eggshell and rice husk powder with 4% weight fraction jute fiber improves the wear resistance of unsaturated polyester composite materials significantly. The filler content was observed to be the major significant factor influencing the wear rate followed by time sliding and normal load. From the results of the S/N ratio, the optimization of wear parameters is obtained at specimens A3, A6, A7, and A10 as to minimize wear rate.