Alloys

Definition

An alloy is a homogeneous mixture of two or more elements, where at least one element is a metal. Alloys often have enhanced properties compared to their component elements.

5 Must Know Facts For Your Next Test

1. Alloys are considered solutions because they are homogeneous mixtures of metals and other elements.
2. Common examples of alloys include steel (iron and carbon), brass (copper and zinc), and bronze (copper and tin).
3. The dissolution process for creating an alloy involves melting the base metal and then adding other elements to achieve the desired composition.
4. Alloys can exhibit improved properties such as increased strength, corrosion resistance, or electrical conductivity compared to their individual components.
5. Phase diagrams are often used to understand the different phases present in an alloy at various temperatures and compositions.

Review Questions

• What makes an alloy different from a pure metal?
• How does the dissolution process contribute to the formation of alloys?
• Can you name three common alloys and their constituent elements?

Related terms

Solution: A homogeneous mixture composed of two or more substances where one substance is dissolved in another.

Colloid: A mixture where very small particles of one substance are evenly distributed throughout another without settling out.

Phase Diagram: A chart used to show the conditions under which distinct phases exist at equilibrium.