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The assessment of GPB2/S" structures in Al-Cu-Mg alloys

Record type: Article

Based on experimental data presented in the literature, we propose a new structure for GPB2/S?? with the composition of Al10Cu3Mg3, which is aluminium-rich compared to S phase (Al2CuMg). The proposed structure is coherent with the fcc. Al matrix, is formed by the replacement of some Al atoms with Cu/Mg, and has orthorhombic structure (space group Imm2) with lattice parameters a = 0.405 nm, b = 1.62 nm and c = 0.405 nm. Simulated high resolution electron microscopy images and simulated diffraction patterns are compared with experimental data on a range of Al–Cu–Mg alloys. A good correspondence is found.

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Citation

Wang, S.C. and Starink, M.J. (2004) The assessment of GPB2/S" structures in Al-Cu-Mg alloys Materials Science and Engineering: A, 386, (1-2), pp. 156-163. (doi:10.1016/j.msea.2004.07.006).

More information

Published date: 2004
Keywords: guinier–preston, s-phase, high resolution electron microscopy, diffraction, Al–Cu–Mg alloy
Organisations: Engineering Sciences

Identifiers

Local EPrints ID: 19325
URI: http://eprints.soton.ac.uk/id/eprint/19325
ISSN: 0921-5093
PURE UUID: 02ef33e2-b2ea-44b9-85b1-c2cd2e6a4357

Catalogue record

Date deposited: 01 Feb 2006
Last modified: 17 Jul 2017 16:31

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