Answered: Figure below is a binary eutectic…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Figure below is a binary eutectic copper-silver phase diagram. Consider if 500 grams of an 88 wt% Ag–12 wt% Cu alloy is slowly cooled from 1000oC to 700oC. α-phase is copper-rich solid solution and β-phase is silver-rich solid solution. Density of copper and silver is 8.96 g/cm3 and 10.49 g/cm3 respectively.

At 700oC, determine the:

1)composition of the phases present.

Atomic percent silver
°C
1100
10
20
30
40 50 60 70 80 90
1084.5
1000
961.93
900
L+a
800 - a
L+B
700
5.5
95
600
a +B
500
400
10
20
30
40
50
60
70
80
90
88
Ag
Weight percent silver
Ca
CB

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