rusting Flashcards
1
Q
what is the only metal that can rust
A
iron
2
Q
what conditions are needed for rusting?
A
oxygen and water
3
Q
how can you prevent rust?
A
painting
adding oil or grease
barrier method
4
Q
what is galvanising?
A
covering iron with a more reactive metal (usually zinc) this is called sacrifical protection because the zinc will react before with oxygen and air
5
Q
stainless steel
A
chromium nickel
hard
resists corrosion
strong
cutlery
