Two metals, A and B, form a substitutional alloy with the binary phase diagram shown here. What is the melting point of the alloy at a composition that is 75% A and 25% B?

a) 1000 °C

b) 1300 °C

c) 1450 °C

d) 2000 °C

Transcribed Image Text:

Temperature (°C) 2000 1750 1500 1250 1000 0 Pure A 25 Liquid Solid alloy 50 Mole percent B 75 100 Pure B