Dislocations and Strengthening mechanisms Flashcards
1
Q
What are 3 strengthening Concepts?
A
Grain size effect, Solid solution hardening, Strain Hardening.
2
Q
what is strain hardening?
A
a ductile metal becomes harder and stronger as it is plastically deformed. it is sometimes called work hardening.
3
Q
what does %CW stand for?
A
% Cold Work
4
Q
what is Solid solution hardening?
A
alloying with impurity atoms that go into either interstitial or substitutional solid solution.
5
Q
what is grain size effect?
A
reducing the grain size can increase a materials strength through having more grain boundaries.
6
Q
what happens after material deformation?
A
stored energy needs to be released.
7
Q
how can the stored energy be released? there are options
A
Corrosion, Spring back, Recovery, Re-crystallization.
