Processing

Question 1

Name the three stages of processing a material.

Answer 1

Shaping
Joining
Finishing (Surface treatment)

Question 2

Name three ways metal properties can be altered.

Answer 2

Alloying
Heat treatment
Work hardening

Question 3

Name four ways polymer properties can be altered.

Answer 3

Blending

Drawing

Crosslinking

Reinforcement

Question 4

Name common defects of metals.

Answer 4

Vacancies (gaps in crystalline)

Grain boundaries

Dislocations (plastic deformation)

Solute atoms on interstitial (dissolved atoms squeeze into spaces between host atoms) and substitutional sites (dissolved atoms replace host atoms)

Question 5

Name point defects.

Answer 5

Vacancy

Substitutional

Interstitial

Question 6

Name line defects.

Answer 6

Edge dislocation

Screw dislocation