2. (25 points) Consider the phase transformation of Ferrous alloy just below isothermal line, we get: the mass fractions of total ferrite () and total cementite in an iron-carbon alloy are 0.88 and 0.12 , respectively. - Is this a hypoeutectoid or hypereutectoid alloy? Why? - Then cooling from this C% fraction point, determine what is the mass fraction (weight percent) of pearlite and how much mass fraction of cementite in pearlite microstructure