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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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Consider 1 kg of an Al-Si alloy with 20 wt % silicon. The sample is slowly cooled down from 900 oC to room temperature. The Al-Si phase diagram is given below.

(a) What is the melting point of Al and Si?

(b) Upon cooling, at what temperature will the first solid appear and what is the phase of the first solid, and what is the composition of the first solid?

(c) At 600oC, what phases do you have and what is the mass of each phase?

(d) At 578oC, what phases do you have and what is the mass of each phase?

°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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