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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 07 | July 2024

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p-ISSN: 2395-0072

Mechanical Behavior of Al7075-TiO2 metal Matrix Composites through Powder Metallurgy Process C. Uday Krishna*3, P. G Scholar, Annamacharya institute of technology and science Tirupati - 517501 P. C. Prakash1 Assistant Professor, Department of Mechanical Engineering, Annamacharya institute of technology and science Tirupati – 517520

M. Balaji2, Assistant Professor, Department of Mechanical Engineering, Annamacharya institute of technology and science Tirupati - 517520 ---------------------------------------------------------------------***---------------------------------------------------------------------

Abstract - Composites with an aluminium metal matrix

animals contain some amount of aluminium compounds. Aluminium makes up around 8% of the total weight of the outer 16 km (10 miles) of the Earth's crust, with oxygen and silicon coming in second and third, respectively. Potash alum, or aluminium potassium sulphate, KAl(SO4)2√12H2O, is known by its Latin name, aluminium, which comes from this term.

have become a significant material in the field of composite materials and particulate reinforced aluminium MMCs has received importance due to their superior technical properties. The research of the influence of processing parameters on better mechanical characteristics is vital because it has a substantial impact on the performance of the product, even though powder metallurgically manufactured aluminium MMCs found applications where superior mechanical properties are required. In this experiment, TiO2 particles with mean diameters of 23, 37, and 67 m and varied weight fractions of 2, 4, and 6% were added to a TiO2/Al 7075 metal matrix composite via powder metallurgy. For each composite, a thorough analysis was conducted to determine how the sintering temperature affected the material's density, porosity, and mechanical, or tensile, and hardness, qualities. The impact of the size and amount of reinforcement, the sintering temperature, and other process parameters on the microstructural and mechanical characteristics of the composites was thoroughly investigated. The experimental examination revealed that excellent sintering could be accomplished up to 500°C. Structure property interactions can only be related in terms of density, porosity, microstructure, compressive strength, and hardness with smaller-sized TiO2 reinforcement. Sintered density/porosity do not supplement with corresponding attributes on hardness with increased TIO2 size, especially with higher temperature. This is due to possible matrix TIO2 achieved, heat partition and its impact on matrix flow stress, as well as potential pooling or agglomeration while dealing with coarse- and medium-sized reinforcing.

1.1.1

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Microscope, Porosity, density, compressive strength and hardness

1.INTRODUCTION

1.1.3

Aluminum and its alloys are lightweight silvery White metal belonging to the periodic table's primary Group 13 (IIIa, or boron group). The most common nonferrous metal and most plentiful metallic element in the crust of Earth is aluminium. Aluminium never occurs in nature in its metallic form due to its chemical activity, but practically all rocks, plants, and

Impact Factor value: 8.226

It is abrasive to tooling It is more expensive than steel It is not quite as strong as steel It is more difficult to weld than steel Faster deceleration in crash It can be easily dent Aluminium would expand about twice than that of steel

Applications The excellent characteristics of aluminum alloys, including their low density, high strength, resistance to corrosion, and good formability, make them useful across multiple industries. A few of the most popular aluminum alloys are used in transportation, electrical applications, consumer goods, medical equipment and construction.

1.1 ALUMINIUM (AL)

Light weight Processing capability & formability Strength Corrosion resistance Recyclability Cost effectiveness Conducts electricity even better than copper Easily colored by anodization, and holds paint extremely well It acts as a good thermal conductor It is hygienic and magnetically neutral

Inherent properties /Disadvantages       

Key Words: Powder metallurgy, Scanning Electron

Superior properties / Advantages

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