Using the phase diagram below (figure 2) for the aluminium-magnesium system, determinei.the phases present andii.the composition (wt% Mg) of each phase andi.the amount of each phase for:a. an aluminium-magnesium (5 wt % Mg) alloy at 500 °C.b.an aluminium-magnesium (20 wt % Mg) alloy at 550 °C.с.an aluminium-magnesium (80 wt % Mg) alloy at 300 °C Atomic percent magnesium1030405060708090700660°649°1200600Liquida + L+ L,1000500451°437°14.93580040068.ב.א -B-600300a + B-B'200!400102030405060708090MgAl908070605040302010()Weight percent magnesiumTemperature, °C20Temperature, °F

The objective of this question is to show the temperature present in the given phase diagram.

Using the phase diagram below (figure 2) for the aluminium-magnesium system, determine i. ii. iii. the phases present and the composition (wt% Mg) of each phase and the amount of each phase for: a. an aluminium-magnesium (5 wt% Mg) alloy at 500 °C. b. an aluminium-magnesium (20 wt% Mg) alloy at 550 °C. an aluminium-magnesium (80 wt % Mg) alloy at 300 °C C.

Using the phase diagram below (figure 2) for the aluminium-magnesium system, determine i. ii. iii. the phases present and the composition (wt% Mg) of each phase and the amount of each phase for: a. an aluminium-magnesium (5 wt% Mg) alloy at 500 °C. b. an aluminium-magnesium (20 wt% Mg) alloy at 550 °C. an aluminium-magnesium (80 wt % Mg) alloy at 300 °C C.

Chemistry

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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

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Question

Using the phase diagram below (figure 2) for the aluminium-magnesium system, determine
i.
the phases present and
ii.
the composition (wt% Mg) of each phase and
i.
the amount of each phase for:
a. an aluminium-magnesium (5 wt % Mg) alloy at 500 °C.
b.
an aluminium-magnesium (20 wt % Mg) alloy at 550 °C.
с.
an aluminium-magnesium (80 wt % Mg) alloy at 300 °C

Atomic percent magnesium
10
30
40
50
60
70
80
90
700
660°
649°
1200
600
Liquid
a + L
+ L,
1000
500
451°
437°
14.9
35
800
400
68.
ב.א -
B-
600
300
a + B
-B'
200!
400
10
20
30
40
50
60
70
80
90
Mg
Al
90
80
70
60
50
40
30
20
10
()
Weight percent magnesium
Temperature, °C
20
Temperature, °F

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