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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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8.24 - A lead-tin (Pb-Sn) alloy consists of 60 wt % proeutectic ẞ and 60 wt % eutectic a + ẞ at
180°C - AT. Calculate the average composition of this alloy. (see Fig. 8.12 below)
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Procutectic a 24%
100% Liquid
Eutectic a
Liquid 76%
Eutectic B
Alloy 2
Alloy 1
Liquid
327
Solidus
= 49%
Liquidas
300
Liquid
Liquidus
250
a + liquid
Procutectic a
-51%
Temperature (C)
200
183
150
Procutectic or
100
18
50
Solvus
19.2
40.0
Solidus
B+ liquid
B
Solvus
Eutectic point
a+B
61.9
97.5
0
10
20
30
40
50
60
70
80
90
100%
100%
Weight percent tin
Sn
Pb
Eutectic B
Eutectic a
Fig. 8.12"
Transcribed Image Text:www
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8.24 - A lead-tin (Pb-Sn) alloy consists of 60 wt % proeutectic ẞ and 60 wt % eutectic a + ẞ at
180°C - AT. Calculate the average composition of this alloy. (see Fig. 8.12 below)
Copyright © The McGraw Hil Companies, Inc. Pession required for reproduction or delay
Procutectic a 24%
100% Liquid
Eutectic a
Liquid 76%
Eutectic B
Alloy 2
Alloy 1
Liquid
327
Solidus
= 49%
Liquidas
300
Liquid
Liquidus
250
a + liquid
Procutectic a
-51%
Temperature (C)
200
183
150
Procutectic or
100
18
50
Solvus
19.2
40.0
Solidus
B+ liquid
B
Solvus
Eutectic point
a+B
61.9
97.5
0
10
20
30
40
50
60
70
80
90
100%
100%
Weight percent tin
Sn
Pb
Eutectic B
Eutectic a
Fig. 8.12
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