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Title: Texture evolution and their effects on the mechanical properties of duplex Mg-Li alloy

Texture evolution is strongly dependent on the deformation mode during thermo-mechanical treatments. In this paper, we report the texture evolution in a duplex Mg-Li alloy. The results provide an evidence of deformation mode transition in the hexagonal-close-packed (hcp) alpha phase with various thickness reductions. The activation sequence of deformation modes is basal slip first, and then pyramidal slip during hot-rolling to a thickness reduction of 40%. The relative activity of slip decreases with further thickness reduction. After annealing, basal texture is strengthened and pyramidal component disappears due to static recrystallization and grain growth. The microstructure, specifically texture evolution in both hcp alpha and body-centered cubic (bcc) beta phase and their effects on mechanical properties are quantitatively analyzed and assessed. (C) 2016 Elsevier B.V. All rights reserved.
Authors:
 [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [1]
  1. Harbin Engineering Univ., Harbin (China)
  2. Zhejiang Univ., Hangzhou (China).
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Journal of Alloys and Compounds
Additional Journal Information:
Journal Volume: 669; Journal ID: ISSN 0925-8388
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Duplex Mg-Li alloy; Texture; Deformation mode; Pyramidal slip; Mechanical properties; NONBASAL SLIP SYSTEMS; MAGNESIUM ALLOYS; SOLID-SOLUTION; DYNAMIC RECRYSTALLIZATION; AB-INITIO; TEMPERATURE; SHEETS; MICROSTRUCTURE; ZN; DEFORMATION
OSTI Identifier:
1346641