Temperature (°C) 1500 1400 L 1280° 1300 1200 1100 1085° Liquidus a+L 1240° α 1455° Solidus 1000 Cu 20 40 60 80 Ni Figure 10-8(a) Weight percent nickel (Repeated for Problems 10-22 and 10-23.) The Cu-Ni phase diagram. (Credit: Adapted from Introduction to Phase Equilibria, by C.G. Bergeron, and S.H. Risbud. Copyright © 1984 American Ceramic Society. Adapted by permission.)