alloys Flashcards
1
Q
alloys
A
- an alloy is a mixture of a metal and one or a few other elements
- atoms of the added element/metal are of a diff size which disrupts the orderly layered arrangement of the original metal atoms—>cannot slide past easily->harder and stronger
2
Q
reasons for using alloys
A
- improves appearance
- harder and stronger
- more resistant to corrosion
- lowers mp of pure metals
3
Q
brass
A
70%copper
30%zinc
4
Q
steel
A
iron and carbon, can corrode
5
Q
how does the percentage of carbon present in steel affect its properties?
A
-makes it more brittle
