For an 85 wt% Pb-15 wt% Mg alloy, make schematic

For an 85 wt% Pb-15 wt% Mg alloy, make schematic

For an 85 wt% Pb-15 wt% Mg alloy, make schematic sketches of the microstructure that would be observed for conditions of very slow cooling at the following temperatures: 600(C (1110(F), 500(C (930(F), 270(C (520(F), and 200(C (390(F). Label all phases and indicate their approximate compositions.