Answered: In Figure 1 (phase diagram), an alloy…

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

In Figure 1 (phase diagram), an alloy composition of 95 wt% Mg and 5 wt% Al is cooled from 700 C to 475 C. An analysis of the resulting ε solid-phase composition reveals that it has a higher Mg content than is anticipated by the phase diagram.
a) Explain why this might be the case and how your reasoning results in the higher-than-expected Mg content.
b) Provide a sketch showing the likely distribution of Mg content within the volume of ε solid-phase.

700-
s0.452°c
650°c
В
A
L
E
500
(AI)
480°c
437°c
(Mg)
400-
a
R
300
Al,Mg
200
100
10
20
30
40
50
60
70
80
90
100
Al
Weight Percent Magnesium
Mg
Temperature °C

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