Facilitated Recrystalization of the Hard-to-Recrystalize Structure in 16% Cr Steel Sheets by one-Pass ECAP Prior to Cold Rolling

Hiroyuki Miyamoto; Tong Xiao; Toshiyuki Uenoya

doi:10.4028/www.scientific.net/MSF.702-703.607

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HomeMaterials Science ForumMaterials Science Forum Vols. 702-703Facilitated Recrystalization of the...

Facilitated Recrystalization of the Hard-to-Recrystalize Structure in 16% Cr Steel Sheets by one-Pass ECAP Prior to Cold Rolling

Abstract:

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.

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Materials Science Forum (Volumes 702-703)

Pages:

607-610

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.702-703.607

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Online since:

December 2011

Authors:

Hiroyuki Miyamoto, Tong Xiao, Toshiyuki Uenoya

Keywords:

Deformation History, Equal-Channel Angular Pressing (ECAP), Recrystallization, Severe Plastic Deformation (SPD), Texture

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DOI: 10.2320/matertrans.m2016443

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