Problem 1 A 30 wt% Sn-70 wt% Pb alloy is heated to a temperature within the aliquid phase region. If the mass fraction of each phase is 0.5, estimate: (a) The temperature of the alloy (b) The compositions of the two phases 327€ 163 1430 61.9 978 Problem 2 An alloy of composition 80 wt% Sn-20 wt% Pb is slowly cooled from the melt to the temperature 182°C, just below the eutectic temperature. a) Determine the mass fraction of the a phase b) Determine the mass fraction of the eutectic structure DJantuny 300 200 100 327°C OPD) 8- W.L 18.3 Composition as S 60 40 Composition (S Liqad 292€ 97.8 100 -600 500 400 300 200 -100 (54) Temperture f Problem 3 A plain carbon-steel alloy of composition 98.6 wt% Fe and 1.4 wt% C is cooled to the temperature 720°C, just below the eutectoid temperature a) Make a schematic sketch of the microstructure, label all phases, and indicate their approximate compositions b) Determine the mass fraction of the eutectoid cementite.
Problem 1 A 30 wt% Sn-70 wt% Pb alloy is heated to a temperature within the aliquid phase region. If the mass fraction of each phase is 0.5, estimate: (a) The temperature of the alloy (b) The compositions of the two phases 327€ 163 1430 61.9 978 Problem 2 An alloy of composition 80 wt% Sn-20 wt% Pb is slowly cooled from the melt to the temperature 182°C, just below the eutectic temperature. a) Determine the mass fraction of the a phase b) Determine the mass fraction of the eutectic structure DJantuny 300 200 100 327°C OPD) 8- W.L 18.3 Composition as S 60 40 Composition (S Liqad 292€ 97.8 100 -600 500 400 300 200 -100 (54) Temperture f Problem 3 A plain carbon-steel alloy of composition 98.6 wt% Fe and 1.4 wt% C is cooled to the temperature 720°C, just below the eutectoid temperature a) Make a schematic sketch of the microstructure, label all phases, and indicate their approximate compositions b) Determine the mass fraction of the eutectoid cementite.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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