A proposed new structure for GPB2/ S" in Al-Cu-Mg alloys
Wang, S.C. and Starink, M.J. (2004) A proposed new structure for GPB2/ S" in Al-Cu-Mg alloys. In, McVitie, S. and McComb, D. (eds.) Electron Microscopy and Analysis 2003: Proceedings of the Institute of Physics Electron Microscopy and Analysis Group Conference, 3-5 September 2003. Electron Microscopy and Analysis 2003: Institute of Physics Electron Microscopy and Analysis Group Conference London, UK, Chemical Rubber Company Press, 277-280. (Institute of Physics Conference Series 179).
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Description/Abstract
Based on previously published HREM work, we propose a new structure for the ordered GPB2/ S" phase with a composition of Al10Cu3Mg3, which is aluminium-rich compared to S phase (Al2CuMg). The proposed structure is coherent with the f.c.c. Al matrix and is formed by the replacement of some Al atoms with Cu/Mg, and has a orthorhombic structure (space group Imm2) and the lattice parameters of a = 0.405 nm, b = 1.62 nm and c = 0.405 nm. The HREM simulation and reflection intensities based on this structure match the experimental image and diffraction patterns.
| Item Type: | Book Section |
|---|---|
| Additional Information: | ISSN 0951-3248 |
| ISBNs: | 0750309679 (hardback) |
| Related URLs: | |
| Subjects: | T Technology > TN Mining engineering. Metallurgy T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering |
| Item ID: | 37611 |
| Date Deposited: | 06 Sep 2006 |
| Last Modified: | 02 Mar 2012 12:28 |
| Contributors: | Wang, S.C. (Author) Starink, M.J. (Author) McVitie, S. (Editor) McComb, D. (Editor) |
| Date: | 2004 |
| Additional Information: | ISSN 0951-3248 |
| Status: | Published |
| Publisher: | Chemical Rubber Company Press |
| URI: | http://eprints.soton.ac.uk/id/eprint/37611 |
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