A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700 °C (1290 °F) to 400 °C (750 °F). (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? (c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase? Temperature (°C) 700 600 500 400 300 200 100 0 560°C First solid (21 wt% Pb) α 20 465°C 5 a + Composition (at% Pb) 40 10 a L + Mg₂Pb 20 Last liquid (67 wt% Pb) 60 L + Mg₂Pb M 30 Mg₂Pb 80 40 1 70 100 TII L + Mg₂Pb B B+ Mg₂Pb 844 IN 1200 1000 800 600 400 200 100 Temperature (°F)

A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700 °C (1290 °F) to 400 °C (750 °F). (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? (c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase? Temperature (°C) 700 600 500 400 300 200 100 0 560°C First solid (21 wt% Pb) α 20 465°C 5 a + Composition (at% Pb) 40 10 a L + Mg₂Pb 20 Last liquid (67 wt% Pb) 60 L + Mg₂Pb M 30 Mg₂Pb 80 40 1 70 100 TII L + Mg₂Pb B B+ Mg₂Pb 844 IN 1200 1000 800 600 400 200 100 Temperature (°F)

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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