Question: 1300 C (2370F). (a) At what temperature does the first liquid phase form? [2] (b) What is the composition of this liquid phase? [2]

1300 C (2370F). (a) At what temperature does the first liquid phase

1300 C (2370F). (a) At what temperature does the first liquid phase form? [2] (b) What is the composition of this liquid phase? [2] (c) At what temperature does complete melting of the alloy occur? [2] (d) What is the composition of the last solid remaining prior to complete melting? [2] Temperature (C) 0 1600 20 20 Composition (at% Ni) 40 60 80 80 100 1500 Liquid 1400 1300 1200 1100 1085C 1345C Liquidus line First liquid (59 wt% Ni) 2800 1453C 2600 -1380C Last solid 2400 a+L (79 wt% Ni) Solidus line a 2200 2000 Temperature (F)

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