Studies On Mechanical And Wear Behaviour Of Al Sic Particulate Composites

Abstract

Use of Aluminium is prevalent in engineering applications because of its oxidation newlineresistance, high corrosion resistance, compaction and low density. Therefore, for a newlineunit volume, its mass is very low, which makes it excellent for aerospace newlineapplications, yielding high power to weight ratio. But the material is very soft and newlinelow wear resistance as compared to other conventional material. Hence, if it is newlinereinforced with harder material it may enhance its engineering properties and may newlinerender it exquisite for use in engineering applications. Other useful applications of newlinesuch material would extend to use in marine applications, automobile application and newlinecivil engineering applications such as design of structure and domestic applications. newlineIn this experiment, A356 is reinforced with micro and nano particles of SiC and newlineperused its effect on various desirable properties like Hardness, elastic modulus, newlinestrength properties, ductility, Impact behaviour, Flexural, Fatigue and Wear newlinebehaviour in these composites. Generally Aluminium Metal Matrix Composites newline(AMMC s) synthesis is done through stir casting as well as powder metallurgy newlinetechnique. Stir casting technique has many distinct advantages such as (a) uniform newlinehomogeneous mixing of reinforcement and matrix materials. (b) Good surface finish newlineand Dimensional accuracy (c) Preparation of samples in desired shape without major newlinemachining. newlineThe principal objective of this research work is to study and analyse the mechanical newlineproperties and wear behaviour on AMMC s by fabricating above composites newlinereinforced with micro and nano particles of SiC in various percentages by weight. The newlinepercentage composition used were A356, A356+10% SiCand#956;m, A356+10% SiCand#956;m+1% newlineSiCnm, A356+10% SiCand#956;m+2% SiCnm, A356+10% SiCand#956;m+3% SiCnm and A356+10% newlineSiCand#956;m+4% SiCnm fabricated using stir casting technique. Mechanical, Wear and newlineMorphological properties of all the prepared AMMC s were examined and analyzed. newlineThe thesis is divided into six chapters which are as follows: newlineChapter 1 gives an Introduction to various terms use