Question: Cite the phases that are present and the phase compositions for the following alloys: (a) 90 wt% Zn-10 wt% Cu at 400C (750F) (b) 75

Cite the phases that are present and the phase compositions for the following alloys:
(a) 90 wt% Zn-10 wt% Cu at 400°C (750°F)
(b) 75 wt% Sn-25 wt% Pb at 175°C (345°F)
(c) 55 wt% Ag-45 wt% Cu at 900°C (1650°F)
(d) 30 wt% Pb-70 wt% Mg at 425°C (795°F)
(e) 2.12 kg Zn and 1.88 kg Cu at 500°C (930°F)
(f) 37 lbm Pb and 6.5 lbm Mg at 400°C (750°F)
(g) 8.2 mol Ni and 4.3 mol Cu at 1250°C (2280°F)
(h) 4.5 mol Sn and 0.45 mol Pb at 200°C (390°F)

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This problem asks that we cite the phase or phases present for several alloys at specified temperatures a That portion of the CuZn phase diagram Figure 919 that pertains to this problem is shown below ... View full answer

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