An EBSD study of texture and grain boundary evolution in a strongly textured aluminium alloy during ECA pressing


Starink, M.J., Wang, S.C., Gao, N., Ubhi, H.S., Xu, C. and Langdon, T.G. (2006) An EBSD study of texture and grain boundary evolution in a strongly textured aluminium alloy during ECA pressing. In, Horita, Zenji (ed.) Nanomaterials by Severe Plastic Deformation. SPD-3: 3rd International Conference on Nanomaterials by Severe Plastic Deformation Switzerland, Trans Tech, 937-942. (Materials Science Forum 503-504).

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Description/Abstract

The texture and grain boundary evolution during equal channel angular pressing (ECAP) of a spray-cast Al-7034 (Al-Zn-Mg-Cu) alloy containing intermetallic particles with a range of sizes was studied through electron backscatter diffraction (EBSD). Up to 8 passes of ECAP using route Bc were employed. The initial ECAP pass leads to the development of low angle grain boundaries and subsequent passes lead to a relatively rapid increase in the fraction of high angle grain boundaries. Before ECAP, the material possessed a strong <111> and <100> fibre texture. On ECAP, the <111> fibre texture component is mostly retained but the <100> fibre develops to a Cube texture after the first ECAP pass. Goss textures form from about 4 passes of ECAP.

Item Type: Book Section
Additional Information: Series ISSN 0255-5476
ISBNs: 0878499857 (hardback)
Related URLs:
Keywords: aluminium 7034 alloy, texture, ECAP, EBSD, LAGB, low angle grain boundaries
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TN Mining engineering. Metallurgy
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 19147
Date Deposited: 09 Jan 2006
Last Modified: 27 Mar 2014 18:08
Publisher: Trans Tech
URI: http://eprints.soton.ac.uk/id/eprint/19147

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