Synthesis, Mechanical Testing And Characterization Of Almg Matrix Sic Reinforced Composite Via Powder Metallurgy And Optimization Of Process Parameters

Abstract

Aluminum-Magnesium (Almg) Alloys Possess Many Uses In The Current Scenario For Universal Use Specially In, Automotive, Aerospace And Computer Industries; Due To The Lightweights, GoodIdentified Strength, High Recyclability And Low-Density Properties, The Primary Almg-Alloys Are The Vital Reason For Their Versatility. The Objectives Of This Thesis Work Were To Fabricate AndP rovide The Light Weight, High Strength Materials Of Almg-Matrix And Almg/Sic Composite ForVital Use In Automotive Application. The Powder Metallurgy (Pm) Technique With The Basic Processing Variables (Such As, Compaction Pressure, Sintering Temperature And Sintering Time)Has Been Considered To Produce The High-Performance Lightweight Almg-Matrix Reinforced With Different Weight Percentages (Wt%) Of Sicp Reinforcement Using Taguchi L9 Orthogonal Array Experimental Design. The Almg Alloy And Almg/Sic Composite Fabricated Materials Were Tested With Different Material Testing Machines And Analysis Of The Effects Of The Pm Process Parameters And The Sic Particle Addition Of 5 And 10 Weight Percentages On The Composite Hardness, Compression Strength, Wear Performance, Porosity And Actual Density Have Been Investigated. In Addition To That, Evolutions Of Microstructure And Wear Morphological Characterization Of The Wear Surfaces For The Developed Almg/Sic Composites Have Been Also Investigated By Optical Microstructure (Om) And Scanning Electron Microscope (Sem).The Actual Density And Porosity Results Obtained By Archimedes Principles For The Almg-Matrix Has Been Found To Be Less Compared To The Almg-Sic Composite Due To Higher Density Of TheSicp Addition Into The Matrix. Whereas, When The Wt% Addition Of Sic Increases, The Hardness And Compression Strength Of The Composites Were Increased. The Higher Hardness (132.633hv)And Compression Strength (350.37mpa) For The Composite Was Obtained With The Addition Of10% Of Sic Into The Matrix. The Wear Resistance Of The Almg-5%Sic And Almg-10sicComposites Were Improved From 26.3% To 78.9% As Compare To The Almg-Matrix.