During zone melting process, the molten zone of a Cu-Ni alloy bar has the initial composition marked by point "B" in the phase diagram. Referring to the righthand side drawing, the power of the heater (induction coil) was on when it travels from left end to right end so that zone melting happened. The power was off when the heater translated fully back to the left side to keep the entire bar in solid state. The heater passed the bar from left to right four times, what is the wt.% of Ni at the left end of the bar. Temperature (°C) 9 1600 1500 1400 1300 1200 1100 1000 1 1085°C 0 (Cu) 1 Liquid Liquidus line 20 B a +L a I Solid solution 40 Composition (wt% Ni) 60 Solidus line 1453°C 80 2800 2600 -2400 2200 100 (Ni) 2000 Temperature (°F) heater cooled solid → unmelted solid molten zone

During zone melting process, the molten zone of a Cu-Ni alloy bar has the initial composition marked by point "B" in the phase diagram. Referring to the righthand side drawing, the power of the heater (induction coil) was on when it travels from left end to right end so that zone melting happened. The power was off when the heater translated fully back to the left side to keep the entire bar in solid state. The heater passed the bar from left to right four times, what is the wt.% of Ni at the left end of the bar. Temperature (°C) 9 1600 1500 1400 1300 1200 1100 1000 1 1085°C 0 (Cu) 1 Liquid Liquidus line 20 B a +L a I Solid solution 40 Composition (wt% Ni) 60 Solidus line 1453°C 80 2800 2600 -2400 2200 100 (Ni) 2000 Temperature (°F) heater cooled solid → unmelted solid molten zone

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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