Empirical Relationships for Transformations in Steels. Heat treatment of steels depends upon knowing the A₁, A₃, A_cm, M_s, and Mf temperatures. Steel producers often provide their customers with empirical formulas that define these temperatures as a function of alloying element concentrations. For example, one such formula described in the literature is

Write a computer program that will ask the user to provide information for the concentrations of different alloying elements and provide the M_s and M_f temperatures. Assume that the M_f temperature is 215 C below M_s.

Ms(inC)=561474(%C)33(%Mn)17(%Ni)17(%Cr)21(%Mo)