Investigation of Mechanical and Morphology of Al-SiC composites processed by PM Route

Arif, Sajjad; Alam, Tanwir; Ansari, Akhter Husain; Siddiqui, M. Arif; Mohsin, Mohammad

doi:10.1088/1757-899x/225/1/012277

Cited by 11 publications

(5 citation statements)

References 8 publications

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“…Higher sliding speed leads to a lower wear rate because the transfer layer on the composite acts as a protective cover and helps reduce the wear rate. Findings by [39] (an increase in sliding speed reduces the wear loss due to hard SiC particles, which act as a load-bearing agent) similar to our study indicate that an increase in sliding velocity leads to a corresponding decrease in the composite's wear rate in this study. The plot (figure 5) shows that the wear rate of synthesized hybrid nanometal matrix composites increase with applied load.…”

Section: Analysis and Discussion Of Results Of Wear Ratesupporting

confidence: 86%

Wear performance of aluminium hybrid nanocomposites using Taguchi

Venkata Subbaiah,

2024

Eng. Res. Express

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This research explored AA 6351reinforced with varying amounts of nano silicon carbide (five wt%) and nanoZirconia powder (3to 9 in steps of three wt%) composites' wear performance using the powder metallurgy technique. Wear tests were conducted on the specimens in a dry, ambient environment utilizing a tribometer(pin-on-disc). The impact of three factors – Zirconia wt percentage, load, and sliding velocity - on the wear rate and friction coefficient was investigated. An experimental design based on the Taguchi-nine-level orthogonal array was employed, allowing for efficient analysis of parameter significance. Optimum conditions for minimum wear were identified through a main effect plot, indicating 9% wt reinforcement, 1.34m/s sliding velocity, and 10 N load. Sliding velocity emerged as the primary determinant of wear- rate in the ANOVA analysis, followed by the contributions of reinforcement and load. Optimization for the lowest friction coefficient, again via the main effect plot, pointed to 9% wt reinforcement, 30 N load, and 0.84m/s sliding velocity. ANOVA showed that reinforcement strongly influenced friction, with sliding velocity and load playing more minor roles.This investigation identified the optimal conditions for producing AA 6351 composites with minimal wear and friction using the powder metallurgy method and varying amounts of nano silicon carbide and nano zirconia powder.

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Section: Analysis and Discussion Of Results Of Wear Ratesupporting

confidence: 86%

Wear performance of aluminium hybrid nanocomposites using Taguchi

Venkata Subbaiah,

2024

Eng. Res. Express

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“…The experiment conducted at 20N load and 600 m sliding distance over 1, 1.5, 2, 2.5 m/s speed. The wear rate was strongly related to the sliding speed reported in some literature [24][25][26]. The wear rate of LM4+2wt %(WC+Ta/NbC) exhibits improved wear resistance as compared with the other percentage of reinforcements.…”

Section: Effect Of Sliding Velocitymentioning

confidence: 86%

Wear behavior of aluminum LM4 reinforced with WC and TA/NbC hybrid nano-composites fabricated through powder metallurgy technique

Sachit¹,

Mohan²

2019

FME Transactions

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The present investigation aims to understand the wear behavior of aluminum LM4 matrix reinforced with the different weight percentage of tungsten carbide and tantalum-niobium carbide (0.5, 1.0, 1.5 and 2wt %) hard particles. Composite Specimens prepared by powder metallurgy route followed by cold pressing and hot sintering process. The wear tests were carried out using pin-on-disc machine under varying load (10, 20, 30 and 40N) speed (1, 1.5, 2 and 2.5m/s) and sliding distance (400, 600, 800 and 1000m) at room temperature. Characterization was done on nanopowders, developed composites and worn out surfaces of tested samples using Transmission Electron Microscopy (TEM), X-ray diffractometer(XRD), Scanning electron microscopy (SEM), Energy Dispersion Spectroscopy (EDS). The obtained results indicate that higher content of hybrid nanoparticles up to 2wt% in the composite reduces the wear rate up to 43.75% as compared with pure aluminum LM4 alloy.

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“…SiC.-Under abrasive and dry sliding condition it is observed that the improved wear resistance in aluminium based SiC reinforced composites with stir casting method 8,9 authors observed the problem with uniform distribution and formation of the cluster due to density difference, varied exposure timing between the molten Al and SiC particles creates poor wettability and elevated surface tension between them for that S Tzamtzis et al 10 used a rheo casting method instead of directly introducing the reinforcement the author converted the state of liquid, the reinforcement introduced in the form of paste even then the problem of formation of the cluster is reduced but not eliminated, the grain refinement of the reinforcement is not uniform which affects the mechanical properties, other than these manufacturing process in solid-state processing is powder metallurgy process the uniform distribution of grains is observed 11,12 Sajjad Arif et al 13 Studied on morphology and mechanical Aluminium-Silicon Carbide composite prepared by powder metallurgy technique. The study focuses on the worn-out surface morphology and analyzed the wear mechanism, and provides the information that an increase in SiC percentage will improve the wear resistance of the material, maximum wear resistance observed when 10% of SiC is added to composite beyond that wear resistance decreases.…”

Section: Methodsmentioning

confidence: 99%

Review—Different Ceramic Reinforcements In Aluminium Metal Matrix Composites

Kumar¹,

Shashank²,

Dhruthi³

2021

ECS J. Solid State Sci. Technol.

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The current study focuses on the effect of the different ceramic reinforcement on the aluminium composite. The pros and cons of AMMCs are studied. In SiC reinforced composite’s wear resistance, tensile strength and hardness will be improved, as it acts as an obstacle to the dislocation of atoms. B4C reinforced composites form more pores and agglomeration by the increase in B4C content however the hardness improves at the expense of ductility. TiC reinforced composite’s interfacial bonding is good below 600 °C and the coefficient of thermal expansion reduces by increasing TiC weight percentage also mechanical properties like tensile and compressive strength improves. Al2O3 reinforcement will make grains finer hence adding Al2O3 improves the mechanical properties of the composite and it doesn’t react with the matrix at high temperature. ZrO2 reinforcement will improve the hardness and wear resistance although primary wear happens due to micro-cutting and oxidation. As mentioned each reinforcement has both advantages and disadvantages, based on the application required reinforcement will be selected.

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Investigation of Mechanical and Morphology of Al-SiC composites processed by PM Route

Cited by 11 publications

References 8 publications

Wear performance of aluminium hybrid nanocomposites using Taguchi

Wear performance of aluminium hybrid nanocomposites using Taguchi

Wear behavior of aluminum LM4 reinforced with WC and TA/NbC hybrid nano-composites fabricated through powder metallurgy technique

Review—Different Ceramic Reinforcements In Aluminium Metal Matrix Composites

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