08. Steel

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10 Terms

1
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What is an alloy?

Mixture of metals / atoms

2
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What happens to metals less reactive than carbon?

Can be extracted from their oxides by reduction with carbon

3
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What can be extracted from their oxides?

Metals less reactive than carbon

4
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What makes iron brittle?

Impurities

5
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What happens if you remove iron’s impurities?

Creates pure iron

6
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What does pure iron have?

Regular arrangement of atoms, layers that slide over each other, soft and easily shaped

7
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What are most irons converted into?

Steels

8
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Why are steels alloys?

They’re a mixture of carbon and iron

9
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What do the different sizes of atoms do?

Distort layers in pure metal structures

10
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What do distorted layers in pure metal structures do?

Make it difficult for them to slide over eachother, making alloys harder