Comment on “The effect of temperature on the grain growth of nanocrystalline metals and its simulation by molecular dynamics method”

Findings on the stability of nanocrystalline grain structures reported by S.A. Sabeti et al. in Computational Materials Science [1] are commented. In particular, the validity of Molecular Dynamics simulations and their comparability with results of thermodynamic modeling [2] are discussed. The conclusion in [1] that “by the increase of the temperature, the possibility for the stoppage of grain growth in nanocrystalline Pd is facilitated” is discussed critically.