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Orientation analyses for twinning behavior in small-strain hot-rolling process of twin-roll cast AZ31B sheet

Zhang, Z and Wang, MP and Jiang, N and Li, SM (2010) Orientation analyses for twinning behavior in small-strain hot-rolling process of twin-roll cast AZ31B sheet. Materials Science and Engineering A, 527. pp. 6467-6473. ISSN 0921-5093

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Abstract

Small-strain hot-rolling experiments have been conducted on AZ31B twin-roll cast sheets. Optical microscope (OM), transmission electron microscope (TEM) and electron backscattered diffraction (EBSD) tests were used to study the various twinning behaviors in the rolling process. After 10% hot-rolling, grains lying with C-axes perpendicular to the ND twinned on the {1 0 1- 2}<1 0 1- 1> system with the largest SF, and rotated to orientations with C-axes aligned with ND, causing a sudden increase in basal texture consequently. With the increase of rolling reduction, {1 0 1- 1}-{1 0 1- 2} twins began to form in the new oriented grains, following the Schmid law. No evident increase in basal texture was found as rolling strain increased from 10% to 20% due to the inhomogeneous strain located in {1 0 1- 1}-{1 0 1- 2} twinned regions. © 2010 Elsevier B.V.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 13 Mar 2020 20:30
Last Modified: 13 Apr 2021 07:05
DOI: 10.1016/j.msea.2010.06.079