Homogeneous mixtures of metals are commonly called alloys. An alloy is made by combining two or more elements, typically at least one of which is a metal, to create a material that has properties different from those of the individual components.
For example, when you combine iron with carbon, you get steel, which is much stronger and more durable than iron alone. Alloys are designed to enhance certain attributes such as strength, ductility, corrosion resistance, or electrical conductivity. This makes them incredibly useful in a variety of applications, from construction to electronics.
The process of making an alloy usually involves melting the base metals together and allowing them to cool, forming a uniform structure. Since the resulting mixture has a consistent composition throughout, the properties of alloys can be tailored precisely for specific uses. This combination of metals can lead to a wide range of materials, including bronze (copper and tin) and brass (copper and zinc).