“…In those equations, ρ is the molar surface density along {111} planes, ∆G γ→ε , the molar Gibbs energy of the transformation γ/ε, σ the surface energy of the interface γ/ε, a, the lattice parameter, N, the Avogadro number, R, the gas constant, T, the deformation temperature, β ϕ , the magnetic moment, x i , the atomic fraction, and d, the grain size in microns. Several contributions have been made to the relationships between SFE, microstructure [5,6], and grain size [9], and wear resistance [10,11]. Similarly, the effect of strain rate by impact through shot peeing [12,13], and explosive hardening [14,15] on the microstructure in austenitic steels with 12 mJ m −2 < SFE < 35 mJ m −2 has been studied.…”