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WorksheetsMetal Phase Diagrams Quiz
Total questions: 15
Worksheet time: 8mins
Which of the following is a primary property of Copper-Nickel alloys?
High electrical conductivity
High corrosion resistance
Low melting point
High thermal expansion
In a Lead-Tin phase diagram, what is the primary phase present at room temperature for an alloy with 40% Tin?
Pure Lead
Pure Tin
Eutectic mixture
β -phase
What is the main phase transformation that occurs in steel when it is cooled slowly from 900°C to room temperature?
Martensite to Austenite
Austenite to Pearlite
Ferrite to Cementite
Bainite to Martensite
Which technique is commonly used to interpret phase diagrams?
X-ray diffraction
Differential scanning calorimetry
Lever rule
Scanning electron microscopy
How does increasing temperature generally affect the phases in a binary alloy system?
Increases the number of solid phases
Decreases the number of solid phases
Has no effect on the phases
Converts all phases to liquid
Which of the following is an application of phase diagrams in materials science?
Determining electrical conductivity
Predicting phase stability
Measuring hardness
Calculating tensile strength
What is the eutectic temperature in a Lead-Tin phase diagram?
183°C
327°C
232°C
96°C
In a Copper-Nickel phase diagram, what is the primary phase present at 50% Nickel and 1200°C?
Liquid
α -phase
β -phase
Eutectic mixture
What is the effect of adding Nickel to Copper in terms of mechanical properties?
Decreases tensile strength
Increases ductility
Increases tensile strength
Decreases hardness
Which phase is not present in the Iron-Carbon phase diagram?
Austenite
Ferrite
Martensite
Graphite
What is the primary use of the Lever rule in phase diagram interpretation?
To determine the melting point
To calculate phase compositions
To measure electrical conductivity
To predict mechanical properties
At what temperature does the eutectoid transformation occur in steel?
727°C
912°C
1147°C
1495°C
Which phase transformation in steel is associated with rapid cooling?
Austenite to Pearlite
Austenite to Martensite
Ferrite to Cementite
Bainite to Martensite
What is the primary benefit of using phase diagrams in alloy design?
Reducing cost
Enhancing aesthetic properties
Predicting phase stability and transformations
Increasing electrical conductivity
In a Copper-Nickel phase diagram, what happens to the melting point as the Nickel content increases?
It decreases
It remains constant
It increases
It fluctuates
