Using the isothermal transformation diagram for a 1.13wt% C steel alloy (found in Callister), determine the final microstructure (in terms of just the microconstituents present) of a small specimen that has been subjected to the following time-temperature treatments. In each case assume that the specimen begins at 920° C and that it has been held at this temperature long enough to have achieved a complete and homogeneous austenitic structure.