A bearing steel with 1.2 wt.% C is analyzed for its microstructure after annealing heat treatment. a) Write down the phase reaction that occurs in this steel at 727oC.
b) What kind of microstructure will be found at room temperature?
c) Analyze for phases present at 100 degrees above the reaction temperature, for their compositions and amounts in the steel.
d) How much pro-reaction phase will be found in the steel? What is its composition?
e) How much of the reaction product mixture is formed? What is its `composition?
f) What are the fractional amounts (relative fractions) of the two phases in the two phase mixture?
g) How much actual amounts of the two phases are present with respect to the alloy in the two phase mixture?