2010/07/28 by P. Duval, Paul Duval, F. Louchet +9
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Metal Alloys Wear and Properties #Microstructure and Mechanical Properties of Steels #Microstructure and mechanical properties #cond-mat.mtrl-sci
paper · pdf · doi:10.48550/arxiv.1007.4878
7 pages, 3 figures
arxiv created 2010/07/28 · openalex publication_date 2010/07/28 · arxiv updated 2010/07/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The essential role of long range elastic interactions in recrystallization is demonstrated using a simple analytical model: pileup rearrangements following absorption of leading dislocations by a dislocation-free embryo provides an additional driving force that results in a drastic decrease of both the nucleation critical radius and the saddle point energy. A very sharp transition is evidenced, at which the saddle point totally disappears and nucleation becomes spontaneous. This transition occurs for a well defined critical stress corresponding to both a critical density of geometrically necessary dislocations and a critical strain, without invoking any critical nucleus size that may be reached with the help of some dislocation microstructure instability. The present model is illustrated here by the case of polycrystalline ice, but may apply to other crystalline material with significant plastic anisotropy, as Zircaloy for instance.