An alloy is a mixture of two or more metallic elements that form a solid solution. There are three main types of alloys: substitutional alloys where one atom replaces another in the crystal structure, interstitial alloys where atoms fill spaces in the crystal structure, and interstitial alloys with a combination of both. Common alloys include steel, which is iron with carbon; brass which is copper and zinc; and bronze which is copper and tin. Alloys are made by melting different metals together.

2. An alloy is a mixture of metallic solid
solution composed of two or more metallic
elements.
Steel Copper Nickel

3. Alloy Structure
Substitutional alloy Interstitial alloy
Interstitial alloy

4. Two Metal Alloy More than Two Metal Alloy
Alloy Molecular Arrangement An Alloy Unit Cell (FCC)

6. Process of making alloy by melting different metals

7. • Cast Iron (Carbon)
• Stainless steel (chromium, nickel)
• Tool Steel (tungsten or manganese)Iron
• Nichrome (chromium)
• Nicrosil (chromium, silicon)
• Ferro Nickel (iron)Nickel
• Brass (zinc)
• Bronze (tin, aluminum)
• Electrum (gold, silver)Copper
• Crown gold (silver, copper)
• Rose gold (copper)
• White gold (nickel, palladium)Gold
• Argentium silver (copper, germanium)
• Platinum sterling (platinum)
• Sterling silver (copper)Silver

8. Steel wheel of car Steel Sheet

9. Stainless steel Aluminum
Platinum-Silver Ring Bronze StatueBrass coins

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presentation.