Mechanical behavior of Al-Sic-Zn-Cu Metal Matrix Composite
Aluminum is the world‘s
most abundant metal and is the third most common element, comprising 8% of the
earth’s crust. The versatility of aluminum makes it the most widely used metal
after steel. After iron, aluminum is now the second most widely used metal in
the world. This is because aluminum has a unique combination of attractive
properties. Low weight, high strength, superior malleability, easy machining,
excellent corrosion resistance and good thermal and electrical conductivity are
amongst aluminum’s most important properties. Aluminum is also very easy to
recycle. A unique combination of properties makes aluminum and its alloys one
of the most versatile engineering and construction material available today. A
metal matrix composite (MMC) is composite material with at least two
constituent parts, one being a metal. MMCs are made by dispersing a reinforcing
material into a metal matrix. The matrix is the monolithic material into which
the reinforcement is embedded, and is completely continuous. This means that
there is a path through the matrix to any point in the material, unlike two
materials sandwiched together. Aluminum MMCs are the combination of aluminum
and its alloys as principal matrix materials and a reinforcing material generally
silicon carbide or carbon fibers, zinc and copper are used as reinforcing
material
In this project we are
finding out the mechanical properties like tensile strength, impact strength,
hardness number, micro structure of the considered composite material
i.e.AL-Sic-Zn-Cu by varying the composite proportions mainly considering of Zn
(2%, 4%) and Cu (2%, 4%).Hence the evaluation of these mechanical properties
are carried out by using UTM, Izod and Charpy tester, Rockwell and Brinell
hardness tester and also microscope. By performing various experiments using
above equipments we had identified that the variation in mechanical properties
by the increasing percentage composition of Zinc and Copper are evaluated. The
results are quantified and analyzed by graphical analysis
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