), answer the following questions a) With reference to the Pb-Sn phase diagram for a 25wt% Pb-75wt% Sn alloy that is cooled from the liquid phase: (i) At what temperature does the first solid form (ii) What is the composition of this solid phase (iii) At what temperature does the material become completely solidified (iv) What are the amounts of the phases present just below the temperature when the material completely solidifies b) Sketch the expected microstructures, with the phases labeled, after slow cooling from the liquid phase to 190 °C and 100 °C
), answer the following questions a) With reference to the Pb-Sn phase diagram for a 25wt% Pb-75wt% Sn alloy that is cooled from the liquid phase: (i) At what temperature does the first solid form (ii) What is the composition of this solid phase (iii) At what temperature does the material become completely solidified (iv) What are the amounts of the phases present just below the temperature when the material completely solidifies b) Sketch the expected microstructures, with the phases labeled, after slow cooling from the liquid phase to 190 °C and 100 °C
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
![a) With reference to the Pb-Sn phase diagram
for a 25wt% Pb-75wt% Sn alloy that is cooled from the liquid phase:
(i) At what temperature does the first solid form
(ii) What is the composition of this solid phase
(iii) At what temperature does the material become completely solidified
(iv) What are the amounts of the phases present just below the temperature when the material
completely solidifies
), answer the following questions
b) Sketch the expected microstructures, with the phases labeled, after slow cooling from the liquid phase
to 190 °C and 100 °C](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb5c0a0a4-cb75-45fb-ac42-63b6308ee415%2F60e1f733-65e8-46d3-ab80-0fa339a7048f%2Fpey43i5_processed.png&w=3840&q=75)
Transcribed Image Text:a) With reference to the Pb-Sn phase diagram
for a 25wt% Pb-75wt% Sn alloy that is cooled from the liquid phase:
(i) At what temperature does the first solid form
(ii) What is the composition of this solid phase
(iii) At what temperature does the material become completely solidified
(iv) What are the amounts of the phases present just below the temperature when the material
completely solidifies
), answer the following questions
b) Sketch the expected microstructures, with the phases labeled, after slow cooling from the liquid phase
to 190 °C and 100 °C
![Temperature (°C)
300
200
100
0
0
327°C
(Pb)
20
a + L
18.3
40
20
Composition (at% Sn)
60
183°C
40
a + B
Liquid
61.9
60
Composition (wt% Sn)
80
80
B+L
232°C
97.8
100
B
1
600
500
400
300
200
100
100
(Sn)
Temperature (°F)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb5c0a0a4-cb75-45fb-ac42-63b6308ee415%2F60e1f733-65e8-46d3-ab80-0fa339a7048f%2Ftjmluyq_processed.png&w=3840&q=75)
Transcribed Image Text:Temperature (°C)
300
200
100
0
0
327°C
(Pb)
20
a + L
18.3
40
20
Composition (at% Sn)
60
183°C
40
a + B
Liquid
61.9
60
Composition (wt% Sn)
80
80
B+L
232°C
97.8
100
B
1
600
500
400
300
200
100
100
(Sn)
Temperature (°F)
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