1. What are the point A and point B meaning? Please explain in detail andwrite the reaction equation.T(° C)16001400Ly+L12001148° C[+Fe;C|(austenite)1000y+Fe;C800727° C = Eutectoida+Fe,C40030.7644.306.6.7C, wt% C(Fe)ina2. What are Hypoeutectoid and Hypoeutectoid? Please explain in detailFe,C (cementite)

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1. What are the point A and point B meaning? Please explain in detail and write the reaction equation. T(° C) 1600 1400 L y+L 1200 |(austenite) I+Fe,C 1148° 1000 y+Fe,C 800 727° C = Eutectoid a+Fe,C 400 0.76 2 6.7 4 '4.30 (Fe) ina C, wt% C 2. What are Hypoeutectoid and Hypoeutectoid? Please explain in detail Fe,C (cementite)

1. What are the point A and point B meaning? Please explain in detail and write the reaction equation. T(° C) 1600 1400 L y+L 1200 |(austenite) I+Fe,C 1148° 1000 y+Fe,C 800 727° C = Eutectoid a+Fe,C 400 0.76 2 6.7 4 '4.30 (Fe) ina C, wt% C 2. What are Hypoeutectoid and Hypoeutectoid? Please explain in detail Fe,C (cementite)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

100%

1. What are the point A and point B meaning? Please explain in detail and
write the reaction equation.
T(° C)
1600
1400
L
y+L
1200
1148° C
[+Fe;C
|(austenite)
1000
y+Fe;C
800
727° C = Eutectoid
a+Fe,C
400
3
0.76
4
4.30
6.
6.7
C, wt% C
(Fe)
ina
2. What are Hypoeutectoid and Hypoeutectoid? Please explain in detail
Fe,C (cementite)

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Consider 0.60 kg of austenite containing 1.3 wt% C, cooled to below 727°C (1341°F). Using the iron-iron carbide phase diagram, Animated Figure 9.24, determine the following: (a) How many kilograms of total ferrite form i kg (b) How many kilograms of total cementite form i kg (c) How many kilograms of pearlite form kg (d) How many kilograms of the proeutectoid phase form i kg
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This is a dynamics question.
1000 grams of steel containing 1.5 weight percent carbon is heated to complete melting. After equilibrium is achieved, we slowly cool the alloy. At 720C we keep the alloy to maintain equilibrium. Determine the amounts of the following, in grams. Pearlite Proeutectoid phase Total cementite
4. Consider a binary alloy of A atoms and B atoms that can exist in a solid phase or a liquid phase. This alloy can also exist in TWO DIFFERENT PHASES SIMULTANEOUSLY: solid and liquid. The system is composed of one mole of atoms, some of which are A atoms and some of which are B atoms. Take GA and GB as the molar Gibbs free energy of pure A and pure B respectively. XA and XB are the molar fractions of A and B atoms respectively. The atoms crystallize in identical crystal structures when they are solid. (a) The starting conditions are such that a partition sits between the A atoms and B atoms so they do NOT mix. (i) Write an expression for the molar Gibbs free energy for the combination of pure components. (ii) Draw schematically how the molar Gibbs free energy of the combination of pure components varies with alloy composition.