(a) Figure 5 shows a phase diagram for the Nb-80 wt% W alloy which is solidified under under the nonequilibrium condition. Evaluate (i) the liquidus temperature (ii) the non-equilibrium solidus temperature (iii) the freezing range

(a) Figure 5 shows a phase diagram for the Nb-80 wt% W alloy which is solidified under under the nonequilibrium condition. Evaluate (i) the liquidus temperature (ii) the non-equilibrium solidus temperature (iii) the freezing range

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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Question

3400
3200
3000
2800
2600
2400
Nb
20
40
60
80
W
Weight percent tungsten
Figure 5: The equilibrium phase diagram for the Nb-W system. The dotted curves
shows nonequilibrium solidus.
Temperature ('C)

(a) Figure 5 shows a phase diagram for the Nb-80 wt% W alloy which is solidified under
under the nonequilibrium condition. Evaluate
(i) the liquidus temperature
(ii) the non-equilibrium solidus temperature
(iii) the freezing range
(iv) the composition of the first solid form during solidification
(v) the composition of the last liquid to solidify
(vi) the phase(s) present, the composition of the phase(s) and the amount of the phase(s)
at 3000 °C
(vii) the phase(s) present, the composition of the phase(s) and the amount of the phase(s)
at 2800 °C.

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