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Questions and Problems :
1. What are the differences between iron and steel ?
2. List one application , the key structural difference , and the best quality for each of the following cast irons
(a) ductile cast iron , (b) gray cast iron , (c) white iron ,(d) malleable iron ,(e) wrought iron .
3. What is the major function of the following in alloy steel :
(a) copper ,(b) vanadium , (c) chromium ,(d) aluminum, (e) lead, (f) nickel, and (g) tungsten ?
4. What are (a) brass, (b) bronze, and (c) refractory metals ?
5. Of the nonferrous metals discussed, copper ,aluminum, magnesium, nickel, chromium, titanium, gold, silver, platinum, lead, tin ,and zinc :
a: what has the highest strength ?
b: which is the lightest in weight ?
c: which is the best electrical conductor ?
d: which is the best thermal conductor ?
e: which offers the best corrosion resistance ?
6. What happens to the properties of hardness strength, and modulus of elasticity with a decrease in temperature ?
7. How does the metallic bond work ,and what effect does it have on metals ?