Eutectic Valleys and Bi-Cd diagrams Flashcards
1
Q
What is an example of interstitial solid solution?
A
C + Fe as steel
2
Q
What are eutectics?
A
Alloys which melt easily
3
Q
What is the eutectic transformation?
A
Like a chemical reaction, but is a physical reaction; at the eutectic point, liquid is super-saturated with S2 and S2, and so is precipitated out simultaneously into crystals
4
Q
What is the formula for the eutectic transformation?
A
L S1 + S2
5
Q
What are proeutectic crystals?
A
Crystals formed at liquidus line to two-phase region
6
Q
How would you describe hypoeutectic Bi-Cd alloys?
A
Proeutectic Bi cuboids amid a matrix of eutectic Cd and Bi lamellae
7
Q
How would you describe hypereutectic Bi-Cd alloys?
A
Proeutectic Cd dendrites amid a matrix of eutectic Bi and Cd lamellae
