Anthony Xavior M

Department of Manufacturing Engineering

School of Mechanical Engineering

Vellore Campus

Prashantha Kumar H.G

Fulltext

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Procedia Engineering

In the recent past aluminum alloy based metal matrix composites had played a major role in replacing most of the conventional materials. These composites are preferred due to its superior physical and mechanical properties. This research article is intended to compare the mechanical and microstructural properties of aluminum alloy based metal matrix composites manufactured through stir and squeeze casting processes. Metal matrix composite was fabricated using Aluminum alloy 7050 as the matrix and graphene as the reinforcement material. Composites were fabricated with 0.3, 0.5 and 0.7 weight percentage of graphene reinforcement through stir and squeeze casting processes. Microstructures observed on the samples showed uniform distribution of graphene as well as an excellent interfacial bonding with the aluminum matrix. Due to the addition of small quantity of graphene into aluminum alloy matrix, the mechanical properties were enhanced for the samples fabricated through both the processes. The strengthening mechanism of aluminum matrix with graphene addition is found to be favourable due to effective load transfer mechanism and grain refinement. Favorable results were obtained related to mechanical properties with the graphene content of 0.3 wt% through squeeze cast process, which also resulted in defect free castings. © 2019 IOP Publishing Ltd.

Materials Research Express

Experimental investigation on stir and squeeze casted aluminum alloy composites reinforced with graphene

Metal matrix composites based on aluminum were developed for light weight applications particularly in aerospace and automobiles sectors. This research article focuses on the development and characterization of Aluminum alloy 7050 matrix composites reinforced with Graphene nanoparticles. Liquid metallurgy techniques such as stir casting and squeeze casting processes were adopted for fabricating the composites. Certain parameters like melting temperature, stirring speed and graphene content with three levels were considered for the fabrication experiments. Taguchi's L27 Orthogonal array is used to evaluate the yield strength, tensile strength and hardness of AA7050-graphene composites fabricated by stir and squeeze casting. Based on the experimental results, analysis of variance (ANOVA) was conducted to determine the level of influence of the parameters on the strength properties such as yield, tensile strengths and hardness of the specimens. © 2019 The Authors. Published by Elsevier Ltd.

Procedia Manufacturing

Characterization on Aluminum Alloy 7050 Metal Matrix Composite Reinforced with Graphene Nanoparticles

Metal matrix composites (MMC's) consist of a metallic matrix combined with dispersed graphene particulate phases as reinforcement. In this research work strength behaviour and tensile characteristics of 2900 alloy matrix composites produced by a powder metallurgy process are investigated as a function of microstructure-strength properties. Two different Samples of Al alloy composites are prepared using 0.25, 0.5 and 0.75 wt% of graphene. Rockwell hardness and tensile properties of these samples are investigated using Instron testing machine. The results indicated that tensile properties of the composites significantly improved in the UTS, on incorporation of hard, graphene particles. The analysis of strength behaviour has revealed that the strength improves significantly with increase in microwave sintering method and the graphene percentage. © 2017 Elsevier Ltd.

Materials Today: Proceedings

Heat Treating Studies of Graphene Reinforced Aluminium Metal Matrix Composite

Materials possessed with unexplored potential like, carbon allotropes have inexorably marched its way into the field of research. The current study focuses on the addition of various combinations of MWCNT in enhancing the mechanical properties of AA 2024 composites. The composite is processed through the ultrasonic liquid processor followed by compaction, sintering (Inert gas atmosphere) and hot extrusion. Micro hardness and X-ray diffraction analysis are done on developed composites. Further, tensile strength was determined on them according to ASTM standards in Instron Universal Testing Machine. Improvement in the strength and possible reasons for crack initiations and fracture surface were extensively analysed to study the effect of reinforcement's addition and its combinations in the aluminium alloy matrix. © 2017 Elsevier Ltd. All rights reserved.

Synthesis and property evaluation of hot extruded AA2024 –MWCNT Nanocomposites

Metal-matrix nano composites particularly the Graphene particle reinforced aluminum alloy based composites, have received considerable attention due to their attractive physical and other properties such as high strength, compressible property, tensile strength, and tribological characteristics. The current research work is aimed to synthesis composites with Graphene as reinforcement and aluminium alloy AA 2024 as matrix material. The consolidation is carried out through powder metallurgy (PM) and hot extrusion approach. The dispersion of Graphene is achieved through ultrasonic dispersion followed by ball milling. Hardness and SEM analysis was carried out on developed composites. Further, tensile strength measurement was performed on developed composites according to ASTM standards in Instron Universal Testing Machine. Improvement in the strength and possible reasons for crack initiations and fracture surface were extensively analysed to study the effect of reinforcement addition and its combinations in the aluminium alloy matrix. © 2017 Elsevier Ltd. All rights reserved.

Mechanical properties evaluation of hot extruded AA 2024 –Graphene Nanocomposites

Industrial Engineering

Scientific Reports

A New Electrochemical Approach for the Synthesis of Copper-Graphene Nanocomposite Foils with High Hardness

Journal of Alloys and Compounds

Microstructural and hardness behavior of graphene-nanoplatelets/aluminum composites synthesized by mechanical alloying

Scripta Materialia

Novel nanoprocessing route for bulk graphene nanoplatelets reinforced metal matrix nanocomposites

Reinforcement with graphene nanosheets in aluminum matrix composites

Graphene Reinforced Metal Matrix Composite (GRMMC): A Review

Journal	Data powered by TypesetProcedia Engineering
Publisher	Data powered by TypesetElsevier BV
ISSN	1877-7058
Open Access	Yes