Chapter 12 - Annealing and Normalizing Flashcards Preview

Metallurgy 10- > Chapter 12 - Annealing and Normalizing > Flashcards

Flashcards in Chapter 12 - Annealing and Normalizing Deck (12):
1

How is the material cooled when normalizing?

set out to cool at room temperature.

2

difference between full annealing and normalizing

In full annealing the metal is slowly cooled in an oven and normalizing is cooling in air temperature.

3

What are some of the results of annealing and normalizing?

It creates a softer ad more ductile meal with less internal stress.

4

List four purposes for annealing and normalizing.

- Easier to machine,
- easier to form,
- relieve internal stresses, - refine the crystal structure of a part.

5

What effect does cold working have on the crystal shapes in steel?

It elongates the crystal structure.

6

How long should a sample be held at the full annealing temperatures before allowing it to cool?

Soak at high temp at least 1hr before

7

What is the advantage of process annealing over full annealing?

It takes less time.

8

To what temperature range is steel heated for process annealing?

1050-1300F

9

Which takes longest to cool, a part that has been normalized, full annealed, or spheroidized?

Full annealing

10

In which process is the material heated the hottest?

full annealing

11

After a part has been treated to a high temperature, which of the following four cooling processes would cause the part to become the softest?

full annealing

12

After a part has been heated to a high temperature, which of the following four cooling processes would cause the part to become the strongest?

air quenching