S. Venkat Prasat's research while affiliated with Amrita Vishwa Vidyapeetham and other places
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Publications (7)
Composite materials are beginning to find a foothold in the modern industrial environment owing to their ever increasing applications. In this research work, LM-13 Aluminium alloy matrix was reinforced with Fly ash (5 wt.%) and varying percentage of Silicon Carbide particulates (0 wt.%, 5 wt.% & 10 wt.%) to fabricate the hybrid composites with the...
Purpose
– The purpose of this paper is to explore the use of fly ash and graphite particles as low cost reinforcing materials for improved wear resistance, enhanced mechanical properties and reduction in density of hybrid composites.
Design/methodology/approach
– The AlSi10Mg/fly ash/graphite (Al/FA/Gr) hybrid composite was synthesised by stir cas...
Purpose
Recent trends in material science show a considerable interest in the manufacturing of metal matrix composites to meet the stringent demands of lightweight, high strength and corrosion resistance. Aluminium is the popular matrix metal currently in vogue that can be reinforced with ceramic materials such as particulates to meet the desired p...
The influence of process parameters on surface roughness (SR), material removal rate (MRR) and tool wear rate (TWR) in electric discharge machining (EDM) of aluminium-fly ash-graphite hybrid metal matrix composites was investigated. The design of experiments approach using Taguchi method was employed to optimise the parameters like peak current, fl...
The aim of the investigation is to study the influence of parameters such as sliding distance, sliding speed, load and fly ash content on dry sliding wear loss and coefficient of friction (COF) of AlSi10Mg?Fly ash?graphite hybrid composites using Taguchi method. A pin-on-disc wear testing equipment was used to conduct the dry sliding wear tests on...
The influence of parameters like load, sliding speed, reinforcement content and their interactions on dry sliding wear rate of aluminium/fly ash/graphite hybrid metal matrix composites was investigated. The design of experiments (DOE) approach using Taguchi method was employed to analyze the wear behaviour of hybrid composites. A pinon-disc apparat...
Citations
... MRR as well as SR of the composite was found to increase with respect to an increase in current, whereas MRR decreased and SR increased with respect to an increase in weight percentage of SiC. Prasat et al. (2011) used liquid metallurgy route to obtain AlSi10Mg/Graphite/Fly ash hybrid composites which were EDMed to investigate the influence of input EDM process parameters on performance measures such as MRR, TWR and SR. Taguchi technique was used to optimise process parameters i.e. flushing pressure, pulse on time and peak current. ...
... Hence, a minimum effect is produced on the wear rate with increased sliding distance. A relevant study obtained a similar outcome of the wear mechanism during experimental work [49]. The FSP-HEA samples exhibit higher wear resistance through better metallurgical bonding, dynamics recrystallization, and refined grains. ...
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... Suppressing the formation of the Al4C3 phase by fly ash has been reported to improve the corrosion performance of aluminum hybrid composites. Venkat Prasat and Subramanian (2013) studied the tribological properties of AlSi10Mg/fly ash/graphite hybrid metal matrix composite. They found that the tensile strength, hardness and wear resistance were higher in the hybrid composites compared to unreinforced alloy and alumina-graphite composites. ...
... The purpose of trituration in engineering is to search for new materials with desirable mechanical properties. Metal matrix composites (MMCs) offer great opportunities to develop lightweight components [1]. Researchers are studying aluminium alloy-based metal matrix composites (MMCs) for advanced technical applications in aviation, automotive, and naval industries. ...
... Although these tools were extensively used for prediction of tool wear and surface finish of metallic or composite materials subjected to machining but extending them to optimization of wear parameters of nanocomposites is relatively new. Prasat et al [30] used Taguchi method to investigate the influence of various wear parameters on wear loss and friction coefficient of AlSi10Mg/flyash/graphite composite. Both S/N ratio and ANOVA results showed sliding distance as dominant factor followed by load on wear rate and friction coefficient. ...
