A material composed of two or more metals, or a metal and a non-metal is commonly known as an alloy. It may be of single phase (solid solution) or a mixture of metallic phases (two or more solutions) or an intermetallic compound without separate boundary between the phases. Alloys are used extensively in various fields like aircraft making, military, industrial, medical, and manufacturing. Alloys with aluminum, copper, nickel, stainless steel, and titanium have specific applications in a wide range of equipment, machinery, vehicles, structures, and many industries. Aluminum alloys are used in making furniture for home, the packing industry, and containers for medical storage.