Metal alloys

Question 1

what are alloys

Answer 1

mixtures of metals

Question 2

what is a common alloy

Answer 2

steel (iron + carbon)

Question 3

What is good about using a mixture of metals

Answer 3

the impurities disrupt the layers of positive ions in the metal crystal - preventing layers sliding over one another

Question 4

Alloys can be used for useful materials, state 6 alloys

Answer 4

low carbon steel
high carbon steel
stainless steel
Tool steel
Gold alloy
Aluminium alloy

Question 5

What does low carbon steel function as

Answer 5

it is low and strength and highly ductile making it useful for suspension bridges and welding

Question 6

what does high carbon steel function as

Answer 6

It is resistant to wear - being very hard and can be used for tools

Question 7

what does stainless steel function as

Answer 7

durable and resists corrosion
doesn’t rust
used in culinary section
contains chromium

Question 8

Why is gold alloyed

Answer 8

pure gold is soft an easily damaged
to make gold useful for jewelry alloy the gold with zinc silver etc
then use the carat scale to determine purity (24 carat - pure)

Question 9

why is aluminium alloyed

Answer 9

it creates high strength low density combinations - useful for aircraft