Thermal Equilibrium Diagram (Leaving Cert Engineering): Flashcards

Graph showing temperature vs composition in binary metal alloys

Phase diagrams or constitutional diagrams

Cooling curves from different metal compositions

Upper boundary where solidification begins

Alloy exists completely in liquid form

Lower boundary where solidification is complete

Alloy is entirely solid

Area with both liquid and solid phases simultaneously

Between liquidus and solidus lines

Difference between liquidus and solidus temperatures

Same temperature for both

Above liquidus line, both metals dissolved in liquid