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Title: Role of deformation temperature on the evolution and heterogeneity of texture during equal channel angular pressing of magnesium

Investigations on texture evolution and through-thickness texture heterogeneity during equal channel angular pressing (ECAP) of pure magnesium at 200 °C, 150 °C and room temperature (RT) was carried out by neutron, high energy synchrotron X-ray and electron back-scatter diffraction. Irrespective of the ECAP temperature, a distinctive basal (B) and pyramidal (C{sub 2}) II type of fibers forms. The texture differs in the bottom 1 mm portion, where the B-fiber is shifted ~ 55° due to negative shear attributed to friction. - Highlights: • ECAP of magnesium was carried out at 200 °C, 150 °C and room temperature. • Microstructure and micro-texture evolution was examined using EBSD in FEG–SEM. • Bulk-texture was studied using neutron diffraction and compared with micro-texture. • Through thickness texture heterogeneity was observed by synchrotron radiation. • Changes in these parameters with respect to deformation temperature are discussed.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [7]
  1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India)
  2. (India)
  3. (DAMAS), Université de Lorraine, F-57045 Metz (France)
  4. Helmholtz Zentrum Geesthacht Max Planck Straße 1, Geb 33, D-21502 Geesthacht (Germany)
  5. Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Université de Lorraine, F-57045 Metz (France)
  6. (France)
  7. Department of Materials Engineering, Indian Institute of Science, Bangalore 560012 (India)
Publication Date:
OSTI Identifier:
22476072
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 102; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BACKSCATTERING; DEFORMATION; ELECTRON DIFFRACTION; FIBERS; FRICTION; MAGNESIUM; MICROSTRUCTURE; NEUTRON DIFFRACTION; NEUTRONS; SCANNING ELECTRON MICROSCOPY; SYNCHROTRON RADIATION; TEMPERATURE RANGE 0273-0400 K; THICKNESS; X RADIATION