Consider the figure below. For an Fe0.40%C alloy, determine the following. (a) the temperature (in C ) at which austenite first begins to transform on cooling C (b) the primary microconstituent that forms y-ferrite -ferrite (c) the amount and composition (as a percentage) of each phase present at 728C wt%Cofwt%Cof%inphase%inphase%%%% (d) the amount and composition (as a percentage) of each phase present at 726C wt %C of a wt %C of Fe3C % in phase % % in Fe3C phase (e) the amount and composition (as a percentage) of each microconstituent present at 726C wt %C of a% wt %C of pearlite % % in phase % % in pearlite %