Pratice Midterm #3

Question 1

Cold Work - Increased (2)

Answer 1

Yield strength and tensile strength

Question 2

Cold Work - Decreased (3)

Answer 2

strain to failure, ductility, electrical conductivity

Question 3

Cold Work - No Change in ….

Answer 3

Young’s Modulus

Question 4

Decrease in Re-crstytallization Temperature with _____ in Cold Work

Answer 4

Increase

Question 5

Annealed (3 stages)

Answer 5

1. Recovery
2. Re-crystallization
3. Growth

Question 6

Annealed (opposite of ___ ____ properties)

Answer 6

Cold Work

Question 7

How does Sintering work?

Answer 7

The powdered material is held in a mold and then heated to a temperature below the melting point.
The atoms in the powder particles diffuse across the boundaries of the particles, fusing the particles together and creating one solid piece.

Question 8

Finer grain size means _____ in MOE

Answer 8

increase

Question 9

Know the Dispersion Strengthing Phase Diagram

Answer 9

Check

Question 10

Factors for effective Dispersion strengthing - The precipitate phase should be ___ and _______________

Answer 10

hard and discontinuous

Question 11

Factors for effective Dispersion strengthing - The dispersed phase particles should be ____ and ________.

Answer 11

small and numerous.

Question 12

Factors for effective Dispersion strengthing - The dispersed phase particles should be _____ rather than __________.

Answer 12

round rather than needlelike

Question 13

Factors for effective Dispersion strengthing -Larger amounts of ______ _____ increase strengthening.

Answer 13

dispersed phase