Alloys


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  • Created by: Louise98
  • Created on: 16-04-14 12:26
What are alloys?
Two metals which are mixed together. It can also be a non metal and a metal mixed together.
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Why do we need alloys?
Pure metals often aren't quite right for certain jobs so scientists mix metals together creating an alloy with the properties that they want.
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What are the properties and uses of low carbon steel?
Low carbon steel can be easily shaped. It is used for car bodies.
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What are the properties and uses of High carbon steel?
High carbon steel is very hard and inflexible. It is used for blades for cutting tools and bridges.
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What are the properties and uses of stainless steel (chromium added and sometimes nickel)
Stainless steel is corrosion resistant and it is used for cutlery and containers for corrosive substances.
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Why are alloys harder than pure metals?
Different elements have different sized atoms. So when an element such as carbon is added to pure iron, the smaller carbon atom will upset the layers of pure iron atoms making it more difficult for them to slide over each other. So alloys are harder.
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What is bronze made up of and what are its properties and uses?
Bronze is made up of copper and tin. Bronze is harder than copper. It's good for making medals and statues from.
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What is cupronickel made up of and what are its properties and uses?
Cupronickel is made up of copper and nickel. This is hard and corrosion resistant. It's used to make silver coins.
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What are gold alloys used for?
Gold is made for jewellery. Pure gold is too soft so metals such as zinc, copper, silver, palladium and nickel are used to harden the gold.
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What are aluminium alloys made to use for?
Aluminium alloys are used to make aircraft. Aluminium has a low density but it's alloyed with small amounts of other metals to make it stronger.
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What does malleable mean?
that it can be shaped.
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What does Ductile mean?
It can be stretched into wire.
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What does Tensile strength mean?
The strength of the metal whilst it's under tension.
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What does low density mean?
The metal is quite light.
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What does corrosion mean?
Something that is broken down or rust.
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What does conductor mean?
Allows heat and electricity to pass through.
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What is alloy called which can return to its original shape after being deformed?
A smart alloy.
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Other cards in this set

Card 2

Front

Why do we need alloys?

Back

Pure metals often aren't quite right for certain jobs so scientists mix metals together creating an alloy with the properties that they want.

Card 3

Front

What are the properties and uses of low carbon steel?

Back

Preview of the front of card 3

Card 4

Front

What are the properties and uses of High carbon steel?

Back

Preview of the front of card 4

Card 5

Front

What are the properties and uses of stainless steel (chromium added and sometimes nickel)

Back

Preview of the front of card 5
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