Consider an Al-12% Mg alloy (Figure 11-29). During solidification, determine
(a) The composition of the first solid to form;
(b) The liquidus temperature, solidus temperature, solvus temperature, and freezing range of the alloy;
(c) The amounts and compositions of each phase at 525°C;
(d) The amounts and compositions of each phase at 450°C; and
(e) The amounts and compositions of each phase at 25°C.

Transcribed Image Text:

Temperature 800 700 600 500 400 300 200 100 0 Al a L a + L 14.9 451 α+ ß 10 Weight percent magnesium 20 35.0 35.57 30 [B