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°C 1,500 1,400 1,300 10 20 20 Atomic percentage, silicon 30 40 50 60 70 80 90 L 1,200 1,100 1,000 900 800 a+L 700 660.452° 600 1.6. 12.6 -α a+B 500 400 -577°- 300 Al 10 20 30 40 50 60 70 Weight percentage, silicon L+B В 1,414° 50 80 90 Si

°C 1,500 1,400 1,300 10 20 20 Atomic percentage, silicon 30 40 50 60 70 80 90 L 1,200 1,100 1,000 900 800 a+L 700 660.452° 600 1.6. 12.6 -α a+B 500 400 -577°- 300 Al 10 20 30 40 50 60 70 Weight percentage, silicon L+B В 1,414° 50 80 90 Si

Elements Of Electromagnetics
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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The Al-Si phase diagram is given below.

Consider 1 kg of an Al-Si alloy with 80 wt % silicon. The sample is slowly heated up from room temperature to 1400 oC. Upon cooling,

(i) At what temperature will the liquid start to solidify and what is the composition of the first solid formed?

(ii) At what temperature will you have an equal amount of solid and liquid phase? And what is the composition of the liquid phase at this temperature?

°C 1,500 1,400 1,300 10 20 20 Atomic percentage, silicon 30 40 50 60 70 80 90 L 1,200 1,100 1,000 900 800 a+L 700 660.452° 600 1.6. 12.6 -α a+B 500 400 -577°- 300 Al 10 20 30 40 50 60 70 Weight percentage, silicon L+B В 1,414° 50 80 90 Si
Transcribed Image Text:°C 1,500 1,400 1,300 10 20 20 Atomic percentage, silicon 30 40 50 60 70 80 90 L 1,200 1,100 1,000 900 800 a+L 700 660.452° 600 1.6. 12.6 -α a+B 500 400 -577°- 300 Al 10 20 30 40 50 60 70 Weight percentage, silicon L+B В 1,414° 50 80 90 Si
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