“…Changes in lattice parameters and elastic stiffness coefficients can directly estimate solid-solution 20 strengthening parameters [23,24,3,19] and changes in ductility [25]. Mesoscale phase-field [26] and crystal plasticity models [27] of multi-phase steels are sensitive to the input lattice parameters and elastic stiffness coefficients of the different phases, and DFT data on the solute-dependence of these properties can enhance the predictive capabilities of these models [28]. 25 In the present article, we consider the effects of the substitutional solutes Al, B, Cu, Mn, and Si, and the interstitial solutes C, and N on the lattice pa-rameter and elastic stiffness coefficients of bcc Fe.…”