Alloys and their properties

9.3

What the syllabus asks of you

Describe an alloy as a mixture of a metal with other elements, including: (a) brass as a mixture of copper and zinc (b) stainless steel as a mixture of iron and other elements such as chromium, nickel and carbon
State that alloys can be harder and stronger 5 Explain in terms of structure how alloys can than the pure metals and are more useful be harder and stronger than the pure metals because the different sized atoms in alloys mean the layers can no longer slide over each
Describe the uses of alloys in terms of their other physical properties, including stainless steel in cutlery because of its hardness and resistance to rusting
Identify representations of alloys from diagrams of structure

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Chapter 9: Alloys and their properties

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