where c is the phase fraction, n is the Avrami exponent, t is the annealing
time, and δ is the kinetics constant. This equation describes heterogeneous
germination, where α and γ crystals develop simultaneously
with time during annealing. In addition, the germination rates of α and
γ crystals, are inversely proportional. Those results are in agreement
with results published for stainless steel thin films fabricated by
sputtering