Modeling Grain Boundary Mobility during Dynamic Recrystallization of Metallic Alloys

Frank Montheillet , Gilles Damamme , David Piot , S.L Semiatin

A simple analytical model is proposed for estimating grain boundary mobility during dynamic recrystallization in metallic alloys The combined effects of solutes (solute drag) and second phase particles (Zener pinning) on mobility are considered The approach is based on (and is consistent with) a recently published mesoscale model of discontinuous dynamic recrystallization The dependence of grain boundary mobility on solute concentration and particle size is summarized in the form of two-dimensional maps.

Mots clés: dynamic recrystallization; solute drag; Zener pinning; grain boundary mobility; modeling

Domaines: Matériaux

Frank Montheillet, Gilles Damamme, David Piot, S.L Semiatin. Modeling Grain Boundary Mobility during Dynamic Recrystallization of Metallic Alloys. Materials Science Forum, 2010, 638-642, pp.2303-2308. ⟨10.4028/www.scientific.net/MSF.638-642.2303⟩. ⟨hal-00854306⟩