Thermal Equilibrium Diagram (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What does a thermal equilibrium diagram show for binary metal alloys?
What does a thermal equilibrium diagram show for binary metal alloys?
Relationship between temperature & composition
What are thermal equilibrium diagrams also known as?
What are thermal equilibrium diagrams also known as?
Phase or constitutional diagrams
What data is used to construct thermal equilibrium diagrams?
What data is used to construct thermal equilibrium diagrams?
Cooling curves of different compositions
What does a cooling curve show?
What does a cooling curve show?
Temperature change over time as alloy cools
Which points from cooling curves are used to construct the diagram?
Which points from cooling curves are used to construct the diagram?
Start & end points of solidification
What does the liquidus line represent?
What does the liquidus line represent?
Upper boundary where solidification begins
What state is an alloy in above the liquidus line?
What state is an alloy in above the liquidus line?
Completely liquid
What does the solidus line mark?
What does the solidus line mark?
Lower boundary where solidification ends
What state is an alloy in below the solidus line?
What state is an alloy in below the solidus line?
Entirely solid
How do liquidus and solidus temperatures differ for pure metals vs alloys?
How do liquidus and solidus temperatures differ for pure metals vs alloys?
Pure metals: same; alloys: different
Where is the pasty region located on the diagram?
Where is the pasty region located on the diagram?
Between liquidus & solidus lines
What phases exist in the pasty region?
What phases exist in the pasty region?
Both liquid & solid simultaneously