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

Journal Article · Wed Apr 15 00:00:00 EDT 2015 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2015.02.021· OSTI ID:22476072

Biswas, Somjeet ^[1]; Brokmeier, H. -G. ^[2]; Fundenberger, J. -J. ^[3]; Suwas, Satyam ^[4]

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1. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India)
2. Helmholtz Zentrum Geesthacht Max Planck Straße 1, Geb 33, D-21502 Geesthacht (Germany)
3. Laboratory of Excellence on Design of Alloy Metals for low-mAss Structures (DAMAS), Université de Lorraine, F-57045 Metz (France)
4. Department of Materials Engineering, Indian Institute of Science, Bangalore 560012 (India)

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.

• OSTI ID: 22476072
• Journal Information: Materials Characterization, Vol. 102; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

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