Learning Objective $12$

Using the iscothermal transformation diagram for a $1\mathrm{.}13$ w$$l$\%$ C iron$-$cartoon allot, siretch and labell ime$-$temperanure paths co produce the following microstructures:

$($a$)6\mathrm{.}2\%$ procutectoid cementite and $938\%$ coanse pearlite

$($b$)6\mathrm{.}2\%$ procurtectoid cementite, $46\mathrm{.}9\%$ fine pearlite and $46\mathrm{.}9\%$ bainite

$($c$)100\%$ martensite

$($d$)100\%$ tempered martensite

$($be sure to label each curve$)$