Effect Of Wear Parameters Research Articles

ANOVA Study on Wear Parameters in Aluminum metal matrix Nano Composites

In this paper, the effect of wear parameters on the wear rate of AA5086 alloy reinforced with Alumina (Al2O3) and Titanium boride (TiB2) is investigated. The Al2O3 content is fixed at 5wt%, while the variation in TiB2 content is considered as one of the parameters. The preparation of AA5086/Al2O3/TiB2 hybrid nano composite is carried out using the stir casting technique. To formulate the experimental design, response surface methodology (RSM) is employed, and four factors at three levels are selected using the Box Behnken design. The chosen process parameters include reinforcement wt% (5%, 7.5%, 10%), load (30N, 40N, 50N), sliding speed (500rpm, 600rpm, 700rpm), and sliding distance (400m, 450m, 500m).The results indicate that the highest wear rate of 0.09876 mm3/Nm is observed when using a load of 50N, sliding speed of 500 rpm, sliding distance of 400m, and a reinforcement content of 5%.An analysis of variance (ANOVA) is performed to determine the significance of each factor on the wear rate. According to the ANOVA results, it is found that load is the most critical factor contributing to the increase in wear rate, followed by sliding distance, sliding speed, and reinforcement content.

Effect of wear parameters and their optimization for wear characteristics of TiCrN thin film using novel MCDM method

This study focuses on experimental and statistical analysis to explore the influence of wear parameters and its optimization for TiCrN thin film deposited tool steel under dry sliding conditions. In this order, nine tribological experiments were performed on the TiCrN deposited tool steel against the SAPH370 steel counterbody. Taguchi L9 orthogonal array was applied to design the experimental setup. There was a total of three wear parameters chosen to perform the tribo-experiment and the parameters are applied load (ranges 10-20 N), sliding velocity (ranges from 0.05 m/s to 0.15 m/s), sliding distance (ranges from 500 m to 1500 m). These wear parameters were evaluated using three different wear characteristics of the TiCrN thin film namely: friction coefficient, mass loss of disc, and hardness of the worn surface. ANOVA was also performed to analyze the significant effect and contributions of the wear parameters on the wear characteristics. However, the wear parameter was optimized using the multicriteria decision-making (MCDM) method which includes entropy, best-worst method (BWM), and TODIM (Tomada de Decisao Interativa Multicriterio) method. Entropy and BWM methods were used to determine the compromised criteria weight while TODIM was used to rank the alternative (sets of wear parameters) based on their dominance score. The stability and robustness of the ranking method were examined using sensitivity analysis. Finally, the linear and nonlinear mathematical model was also developed and compared based on the value of R2.

Study on wear behavior of low nickel austenitic stainless steel by using ball on disc

Austenitic stainless steels have wide applications in various industries due to its good corrosion characteristics and their surface strength. A variety of procedures are used to enhance the surface characteristics. Wear studies are critical in all of the toughest materials. Surface damage was studied in terms of material-removal methods such plastic deformation and brittle fracture. This paper investigated the specific wear rate of Low Nickel ASS. The parameters selected for wear testing like sliding speed, load, time duration and types of ball. Six numbers of experiments were conducted for measuring specific wear rate, mass loss and coefficient of friction were highlighted in this paper. A comparison study was made to know the effect of wear parameters like sliding speed, load, time duration and types of ball on specific wear rate and coefficient of friction. It was seen that with increasing of load and sliding speed of disc the specific wear rate of the material significantly increasing.SEM analysis was also made on worn surface to know the behaviour of wear in the sample.

Optimizations of RZ5-TiC magnesium matrix composite wear parameters using Taguchi approach

PurposeThe advancement in modern manufacturing technology generated the need to develop new materials for better wear resistance. The purpose of this paper is to use the Taguchi optimization approach to examine which wear parameter significantly affects weight loss and coefficient of friction for RZ5-TiC composite. It is a simple and efficient method to find performance of wear parameter using minimum experimental runs.Design/methodology/approachRZ5-TiC composites were prepared using RZ5 as matrix, reinforced with TiC through self-propagating high-temperature synthesis technique. In the present work, an attempt has been made to study the influence of wear parameters like applied load (AL), sliding distance (SD) and Wt.% of TiC (WTC) on responses like weight loss and coefficient of friction of RZ5/TiCp composites. The pin-on-disc apparatus used to conduct abrasive wear test. The wear process parameters are optimized for minimum wear based on L27 Taguchi orthogonal design. The Taguchi technique using design of experiments (DOE) is used to obtain the data. The ANOVA and an orthogonal array are used to examine the influence of wear parameters on responses. The purpose is to examine parametric significances which affect responses.FindingsIt observed that wear parameters have the significant influence on responses of RZ5/TiCp composites. The interaction of sliding distance/Wt.% of TiC is observed and found significant influence on both responses. The optimum level of the significant wear parameters is achieved based on the maximum S/N ratio for RZ5/TiCp composites. The optimal interaction for weight loss and coefficient of friction is AL1-SD1-WTC3 and AL3-SD1-WTC3, respectively. Finally, the confirmation test is conducted and the results are obtained within the confidence interval.Originality/valueThe current manuscript provides an optimization of wear parameters using Taguchi approach. The extensive experimental data are used for this purpose and effects of wear parameters on responses are analyzed from the presented results. The results obtained are useful in improving the wear resistance of the RZ5-TiC composite.

Effect of wear parameters on dry abrasive wear of RZ5-TiC in situ composite

PurposeThe purpose of this study is to increase the wear resistance of Mg alloy by adding hard ceramic particles to it. The inclusion of hard ceramic particles further strengthen the Mg alloy, resulting in higher wear resistance. Mg alloys containing Zn, rare earth and Zr exhibit high specific strength and excellent creep resistance, making them suitable for aerospace components such as aircraft gearboxes and generator housings.Design/methodology/approachIn the present study, composites have been produced in situ by using RZ5 mg alloy as matrix and TiC as reinforcement by self-propagating high-temperature synthesis technique. The abrasive wear behavior of RZ5 Mg alloy matrix reinforced with TiC particulates has also been examined. The pin-on-disc apparatus has been used for the tests. The abrasive paper is used as a counter body, and the results are obtained by changing sliding distance and applied load.FindingsA notable enhancement in the wear resistance and mechanical properties of tested composite has been observed as compared to the RZ5 Mg alloy as a matrix. There is a uniform increment in the change in weight loss of RZ5-TiC composite with increasing sliding distance and applied load, but it decreases with increasing TiC content. The coefficient of friction (µ) also decreases uniformly with an increase in the reinforcement of TiC, but it decreases with an increase in applied load and sliding distance. The investigation of the worn composite, which determines dominant wear mechanisms as abrasion and plowing grooves on tested samples, has been done using field emission scanning electron microscopy.Originality/valueThe current manuscript provides a detailed abrasive wear analysis of RZ5-TiC composite by using different wear parameters. Specifically, extensive experimental data have been provided for RZ5-TiC composite. The effects of parameters such as applied load, sliding distance and Wt.% of TiC on the weight loss and coefficient of friction of the composites have been analyzed and discussed thoroughly.

Effect of wear parameters on dry sliding behavior of Fly Ash/SiC particles reinforced AA 2024 hybrid composites

In the present work AA 2024 alloy reinforced with mixtures of SiC and Fly Ash (FA) particles of 70 µm (5, 10 and 15 wt. %) are fabricated using the stir casting method. Both reinforcements are added in equal weight proportions. The wear test specimens are prepared from both the alloy and composite castings in the dimensions of Ф 4 mm and 30 mm lengths by the wire cut EDM process. The dry sliding wear properties of the prepared composites at room temperature are estimated by pin-on-disc wear testing equipment. The wear characteristics of the composites are studied by conducting the dry sliding wear test over loads of 0.5 Kgf, 1.0 Kgf, 1.5 Kgf, a track diameter of 60 mm and sliding times of 15 min, 30 min, 45min. The experimental results shows that the wear decreases with an increase in the weight percentage of FA and SiC particles in the matrix. Additionally wear increases with an increase in load and sliding time. Further, it is found that the wear resistance of the AA2024-Hybrid composites is higher than that of the AA2024 matrix.

The effect of wear parameters and heat treatment on two body abrasive wear of Al–SiC–Gr hybrid composites

The two body abrasive wear behavior of stir cast Al 6082–SiC–Gr (Al–SiC–Gr) hybrid composites was investigated and compared with its matrix alloy and SiC reinforced composites. The experiments were done on pin-on-disc equipment at test conditions of 5–15N load, 50–75m sliding distance and 200µm grit size. The wear results indicate that the hybrid composites yielded better wear resistance compared to matrix alloy and SiC reinforced composites. At higher load and sliding distance, wear improvement of Al–SiC–Gr composites was 16.4% and 27% in as cast and T6 heat treated condition respectively. The worn surface analysis of tested samples and grit papers was done by using scanning electron microscope (SEM).

Experimental investigation and modelling on dry sliding wear behaviour of Al–zircon metal matrix composites

The present paper presents the influence of wear parameters on wear behaviour of Al–LM25–zircon metal matrix composites. The composite has been fabricated by novel stir casting process and heat treated. The wear behaviour of composites against EN32 steel was studied using pin on disc type wear test rig. The mathematical model to predict the wear rate of Al–zircon composites has been expressed in terms of reinforcement volume fraction, particle size, applied load, sliding speed and sliding distance using five factors, five level central composite design matrix approach by response surface method. The morphology and topography of worn out surface wear were studied using a scanning electron microscope. The effect of wear parameters on wear rate of composites was analysed by statistical method.

Dry sliding friction and wear properties of metallic glass coating and martensite stainless coating

The wire arc spraying process was used to prepare FeB-based metallic glass coating and 3Cr13 coating. The effects of wear parameters, such as sliding distance, linear speed and normal loads, on the wear performances of the coatings were analyzed in detail. The results showed that, with increase in sliding distance, linear speed and normal loads, the volume losses of the metallic glass coatings increased. The relationships between wear behavior and microstructure of the coatings were discussed. The metallic glass coating had excellent wear resistance. The relatively wear resistance of the metallic glass coating was about 2.6 times that of the 3Cr13 coating under the same testing conditions. The main failure mechanism of the metallic glass coating was brittle failure and fracture.

Tribology Study of Nanodiamond Hybrid Polyurethane/Epoxy Interpenetrating Polymer Networks Materials

Tribology behavior of Nanodiamond(ND) polyurethane(PU)/epoxy(EP) interpenetrating polymer networks hybrid materials were tested by friction wear testing machine. Results showed that when EP content was 30%, resultant PU/EP IPNs exhibited best wear resistance. For ND-PU/EP IPNs hybrids, when the ND addition was 0.2wt%, the best wear resistant ability was obtained. Under dry condition, the effect of wear parameters, such as rotational speed, load and central distance to friction and abrasion value were also investigated.

Modelling and analysis on wear behaviour of aluminium metal matrix composites: a statistical approach

This paper presents the influence of wear parameters on the wear rate of Al/ZrO2 composites. The composite has been fabricated by a stir casting route and heat treated at 490°C for 5 h and then quenched in water followed by artificially aged at 150°C for 7 h. The tribological behaviour of the composites against EN32 steel was studied using a pin on disc type wear test rig. The mathematical model to predict the wear rate of the Al/ZrO2 composites has been expressed in terms of reinforcement volume fraction, applied load, sliding speed and sliding distances using a four-factor, five-level central composite design matrix approach by response surface method. The morphology and topography of the worn surface wear were studied using a scanning electron microscope. The effect of wear parameters on the wear rate of the composites was analysed by a statistical method.