Question $8$

$0/15$ pts

The image below shows the phase diagram for leadtin. If an alloy is produced in molten state at point $2$ illustrated $(45\%$ Sn$)$ and then cooled slowly to $180$ degrees C $,$ what percentage of the microstructure will be made up of grains of alternating band of Pb rich and Sn rich phases $($like how pearlite looks$)?$

$61\mathrm{.}24($with margin: $0\mathrm{.}5)$