CHAPTER 7 Flashcards
(4 cards)
1
Q
How does polycrystalline materials differ from single crystal in terms of slip?
A
-Slip in each grain on most favorable slip system (with largest τR)
-Slip lines in grains have different orientation
2
Q
What happens to polycrystalline materials in terms of grain shape?
A
Changes due to slip
Similar to plastic deformation…grains changes according to stress (ex elongation)
3
Q
Strength is increased by __________.
A
decreasing dislocation mobility
4
Q
What are the strengthening techniques for metals?
A
Grain size reduction
Solid solution strengthening
Strain hardening (cold working)
