A mixture of different metals is called an "alloy." Alloys are created to combine the beneficial properties of various metals, enhancing strength, corrosion resistance, and other characteristics. Common examples include steel (a mixture of iron and carbon) and bronze (a mixture of copper and tin). Alloys have numerous applications in construction, manufacturing, and everyday items due to their improved mechanical properties compared to pure metals. The process of alloying can also influence characteristics like melting points, malleability, and ductility, making them critical in engineering and technological advancements.