Construct a phase diagram for the system A$-$B for the following data: Melting point of A $=1000$oC Melting point of B $=8000$oC Eutectic Point $=500$oC at $40$atomic $\%$B Maximum solubility of A in B at $500$oC $=10$atomic $\%$Maximum solubility of B in A at $500$oC $=20$atomic $\%$Limits of solid solution at $300$oC $=10$atomic $\%$in A$,$

$5$atomic $\%$in B$.$Label the phase diagram. Calculate fractions of proeutectoid phase and eutectic mixture at the eutectic temperature for the alloy containing $25$atomic $\%$B$.$Make a T$-$T$-$T curve for $0\mathrm{.}8$ wt$\%$ eutectoid steel. Mark the areas of coarse perlite, fine perlite, upper bainite and lower bainite.