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3. The metals copper (Cu) and Silver (Ag) are related by means of the eutectic type phase diagram as shown below. Using this diagram answer the following questions. °C 1084.5° 1000 900 ? + L 800 ? 8.0 780° 700 600 500 ? + ? 400 L ? + L 71.9 91.2 961.93° ? Cu 10 20 30 40 50 60 70 80 90 Ag Weight Percent Silver a. What is the maximum solubility of Cu in Ag in solid state? Show that by a point on the diagram b. Suppose that 2 kgs of an alloy containing 40 wt % Ag is heated from room temperature up. i. At what temperature (in °C) the first liquid phase will appear in this alloy upon heating? ii. ii. What will be the composition of the liquid at this temperature? iii. iii.How many grams of liquid will be the composition of the last solid particles? c. Draw the cooling curve for the alloy containing 40 wt % Ag. Indicate the critical temperatures in °C. d. Draw the microstructure developed in this alloy 500 °C.

          3. The metals copper (Cu) and Silver (Ag) are related by means of the eutectic type phase diagram
as shown below. Using this diagram answer the following questions.
°C 1084.5°
1000
900
? + L
800
?
8.0
780°
700
600
500
? + ?
400
L
? + L
71.9
91.2
961.93°
?
Cu 10 20 30 40 50 60 70 80 90 Ag
Weight Percent Silver
a. What is the maximum solubility of Cu in Ag in solid state? Show that by a point on the
diagram
b. Suppose that 2 kgs of an alloy containing 40 wt % Ag is heated from room temperature
up.
i. At what temperature (in °C) the first liquid phase will appear in this alloy upon
heating?
ii. ii. What will be the composition of the liquid at this temperature?
iii. iii.How many grams of liquid will be the composition of the last solid particles?
c. Draw the cooling curve for the alloy containing 40 wt % Ag. Indicate the critical
temperatures in °C.
d. Draw the microstructure developed in this alloy 500 °C.

3. The metals copper (Cu) and Silver (Ag) are related by means of the eutectic type phase diagram
as shown below. Using this diagram answer the following questions.
°C 1084.5°
1000
900
? + L
800
?
8.0
780°
700
600
500
? + ?
400
L
? + L
71.9
91.2
961.93°
?
Cu 10 20 30 40 50 60 70 80 90 Ag
Weight Percent Silver
a. What is the maximum solubility of Cu in Ag in solid state? Show that by a point on the
diagram
b. Suppose that 2 kgs of an alloy containing 40 wt % Ag is heated from room temperature
up.
i. At what temperature (in °C) the first liquid phase will appear in this alloy upon
heating?
ii. ii. What will be the composition of the liquid at this temperature?
iii. iii.How many grams of liquid will be the composition of the last solid particles?
c. Draw the cooling curve for the alloy containing 40 wt % Ag. Indicate the critical
temperatures in °C.
d. Draw the microstructure developed in this alloy 500 °C.

Added by James T.

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