An alloy is a mixture of two or more metallic elements, typically composed of a base metal and one or more other elements, that are combined to give specific material properties that are not found in the base metal alone.
Alloys are used in the aerospace industry to provide strength, corrosion resistance, and other desired properties in aircraft and spacecraft components. Some common examples of alloys used in the aerospace industry include aluminum alloys, steel alloys, and titanium alloys. These alloys are used in a variety of applications, including structural components, engine parts, and other aircraft systems.