Facilitated Recrystalization of the Hard-to-Recrystalize Structure in 16% Cr Steel Sheets by one-Pass ECAP Prior to Cold Rolling
The extended band structures of cold-rolled high Cr steel sheets are recrystallization resistant, and tend to become the so-called grain colony as a recovered state. It is shown that a novel approach involving strain-path change by introducing one-pass ECAP prior to cold rolling facilitated recrystallization. Indeed, recrystallization temperature was reduced by 100 °C, compared with cold rolling alone imposing the same equivalent strain. Dense deformation bands introduced during ECAP perturbed the banded structures and enhanced the recrystallization at final annealing.
Asim Tewari, Satyam Suwas, Dinesh Srivastava, Indradev Samajdar and Arunansu Haldar
H. Miyamoto et al., "Facilitated Recrystalization of the Hard-to-Recrystalize Structure in 16% Cr Steel Sheets by one-Pass ECAP Prior to Cold Rolling", Materials Science Forum, Vols. 702-703, pp. 607-610, 2012