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HW2Solutions

# HW2Solutions - EMS 164 Homework 2 Solutions 1 Complete the...

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EMS 164- Homework 2 Solutions 1. Complete the construction of the phase diagram from the following information (started in our discussion on April 9): (10 points) a) Component A melts at 1600 C and B at 1400 C b) An intermediate compound (50A-50B) melts congruently at 1700 C c) An intermediate compound (80B-20A) melts incongruently at 1000 C d) Invariant points occur at 30B and 95 B e) Maximum solubility of B in A is 10B, maximum solubility of A in B is 98B. 2 points for melting points of A and B  2 points for AB and AB4 compounds,  1 point for congruently melting, 1 point for incongruently melting,  2 points for invariant points,  2 points of maximum solubility of A and B

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2 . Consider the Al-Ag phase diagram (textbook p. 285 or any Phase Diagram book, e. g., ASM Handbook Vol. 3). Draw schematic free energy-composition curves for the phases present in this system at 800 C, 780 C and 566 C. Ignore the dashed lines. Extra credit for finding one mistake in the textbook phase diagram.
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HW2Solutions - EMS 164 Homework 2 Solutions 1 Complete the...

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