Kinetics of individual grains during recrystallization of cold-rolled copper

[摘要] The formation of a recrystallization texture is closely related to the nucleation and growth of recrystallizing grains, which may vary from grain to grain. Cube texture is a commonly observed recrystallization texture in face centered cubic metals of medium to high stacking fault energy after heavy cold-rolling and annealing. In this work, recrystallization of pure copper cold-rolled to a von Mises strain of 2.7 was investigated in situ using three-dimensional X-ray diffraction. Growth curves of 835 grains were determined, and the curves of cube and noncube grains were compared. It was found that the nucleation times of cube grains and non-cube grains were similar, whereas the growth rates of a few but not all cube grains were high. Effects hereof for the development of the cube texture were discussed.

[发布机构] Department of Wind Energy, Technical University of Denmark, Risø Campus, Roskilde; 4000, Denmark^1;Department of Materials Science and Engineering, Northwestern University, Evanston; IL; 60208-3108, United States^2;Helmholtz-Zentrum Geesthacht, Institute of Materials Research, Max-Planck-Straße 1, Geesthacht; 21502, Germany^3;Section for Materials and Surface Engineering, Department of Mechanical Engineering, Technical University of Denmark, Kongens Lyngby; 2800, Denmark^4

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Cube texture;Face-centered cubic metals;Growth curves;Individual grains;Nucleation and growth;Pure copper;Recrystallization texture;Stacking fault energies