chapter 1

Question 1

metallurgy

Answer 1

the science that explains the properties, behavior, and internal structure of metals. Properties of metals can be changed using various treatments.

Question 2

ferrous metallurgy

Answer 2

study of metals that use iron as their basic ingredient.

Question 3

nonferrous metallurgy

Answer 3

metals that do not use iron as a principal alloy

Question 4

ferrous

Answer 4

iron and steel

Question 5

nonferrous

Answer 5

aluminum, titanium, copper, nickel magnesium

Question 6

case hardening

Answer 6

produces a hard surface on the metal part while the interior core remains soft and ductile (workable, not brittle)

Question 7

process annealing

Answer 7

a heat treating process that causes the metal to relax, removing internal stresses.

Question 8

tempering

Answer 8

is a reheating of metal to slightly soften it. Usually a helpful metallurgical process performed to make the metal more stress-free, distortion-free, and crack-free.

Question 9

water quenching`

Answer 9

used to harden and strengthen may cause distortions

Question 10

air quenching

Answer 10

uses air to quench