Question

In: Other

In a system A-B-C, a ternary alloy of composition 30wt% B and 30 wt % C...

In a system A-B-C, a ternary alloy of composition 30wt% B and 30 wt % C consists at a particular temperature of three phases of equilibrium compositions as follows:

Liquid phase: 50% A, 40% B, 10% C

Alpha solid solution: 85% A, 10% B, 5% C

Beta Solid solution:10% A, 20% B, 70% C

(a) Calculate the proportions by weight of liquid, Alpha, and Beta present in this alloy.

(b) For the same temperature, deduce the composition of the alloy consisting of equal proportions of Alpha and Beta phases of the compositions stated above, but with no liquid phase.

Solutions

Expert Solution


Related Solutions

A 60 wt% Ni-40 wt% Cu alloy is slowly cooled from 1400°C (2550°F) to 1150°C (2100°F)....
A 60 wt% Ni-40 wt% Cu alloy is slowly cooled from 1400°C (2550°F) to 1150°C (2100°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 last of the liquid solidify? (d) What is the composition of this last remaining liquid phase?
For a BCC iron-carbon alloy that contains 0.15 wt% C, calculate the fraction of unit cells...
For a BCC iron-carbon alloy that contains 0.15 wt% C, calculate the fraction of unit cells that contain carbon atoms.
For a BCC iron-carbon alloy that contains 0.23 wt% C, calculate the fraction of unit cells...
For a BCC iron-carbon alloy that contains 0.23 wt% C, calculate the fraction of unit cells that contain carbon atoms. One carbon atom per   ? unit cells.
1. In carbonitriding of an iron-carbon alloy (steel) initially containing 0.05 wt% C and no nitrogen...
1. In carbonitriding of an iron-carbon alloy (steel) initially containing 0.05 wt% C and no nitrogen is subjected to carbonitriding at an elevated temperature and in an atmosphere that gives a surface carbon concentration constant at 0.5 wt% and surface nitrogen concentration constant 0.2 wt%. Find the ratio of the diffusion coefficients ‘C in steel’/‘N in steel’ if after 36 h the concentration of carbon at a position 0.4 mm below the surface is 0.35 wt%, and the concentration of...
We have a metal alloy (bcc) that Metal A is FCC, 30 atom% (40.244 wt%), r=0.2...
We have a metal alloy (bcc) that Metal A is FCC, 30 atom% (40.244 wt%), r=0.2 nm, A = 55 g/mol and, Metal B is BCC, 70 atom% (59.756 wt%), r=0.24 nm, A = 35 g/mol 1. Find the volume per atom for metal A and metal B by dividing the unit cell volume by the number of atoms in the unit cell. Put your units in cm3/atom. 2. Use the atom% values and the answers to (a) to find...
A 40 wt% Pb–60 wt% Mg alloy is heated to a temperature within the a liquid-phase...
A 40 wt% Pb–60 wt% Mg alloy is heated to a temperature within the a liquid-phase region. If the mass fraction of each phase is 0.5, then estimate (a) the temperature of the alloy (b) the compositions of the two phases in weight percent (c) the compositions of the two phases in atom percent
A 40 wt% Pb–60 wt% Mg alloy is heated to a temperature within the a liquid-phase...
A 40 wt% Pb–60 wt% Mg alloy is heated to a temperature within the a liquid-phase region. If the mass fraction of each phase is 0.5, then estimate (a) the temperature of the alloy (b) the compositions of the two phases in weight percent (c) the compositions of the two phases in atom percent
2. Phase transformations and microstructural control in Fe-C alloy system (11 marks) For the Fe-C alloy...
2. Phase transformations and microstructural control in Fe-C alloy system For the Fe-C alloy of eutectoid composition (shown below in the left graph): 1100 ' 800 T TT 500 I I I I I I I I a + Fe3C 100 M(50%) A/(90%) 1 10 50% 102 103 104 105 Time (s) 400_ I01.0 2.0 10_1 Composition (wt% C) a) Name the possible types of micro-constituents in microstructures achieved by austeniticphase transformation when subjected to various isothermal heat treatments. [1]...
if x1= Acos(wt+a) and x2+ Bcos(wt+b), how can I show that x1+x2=C cos (wt+c)? Furthermore how...
if x1= Acos(wt+a) and x2+ Bcos(wt+b), how can I show that x1+x2=C cos (wt+c)? Furthermore how can I express the value of C and c? (using complex exponentials)
Using the given lead-tin phase diagram for an alloy content of 80 wt % Sn and...
Using the given lead-tin phase diagram for an alloy content of 80 wt % Sn and a temperature of 100 C (a) what is the primary phase (b) what are the mass fractions of eutectic and primary phases? Show tie line used and all calculations. Use standard lead-tin phase diagram.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT