Chapter 7 Phase Equilibria and Phase
Diagrams
•
The one-component phase diagram
– Gibbs Phase Rule
•
Phase equilibria in a two-component system
– The isomorphous diagram
– The lever rule
– Equilibrium solidification and microstructure of
isomorphous alloys
•
Liquidius and solidus boundaries
•
Deviations from ideal behavior
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Chapter 7 Phase Equilibria and Phase
Diagrams, Continued
•
Phase equilibria in a two-component system
– The eutectic phase diagram
– The peritectic phase diagram
– The monotectic phase diagram
– Complex diagrams
– Phase equilibria involving solid-to-solid reactions
Pure
Sugar
Temperature (°C)
0
20
40
60
80
100
C
o
=Composition (wt% sugar)
L
(liquid solution
i.e., syrup)
Solubility
Limit
L
(liquid)
+
S
(solid
sugar)
65
20
40
60
80
100
Pure
Water
Two-Component Phase Diagram
Sugar-Water
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