Evolution of microstructure and precipitation in heat-treatable aluminium alloys during ECA pressing and subsequent heat treatment
Gao, Nong, Starink, Marco J., Furukawa, Minoru, Horita, Zenji, Xu, Cheng and Langdon, Terence G. (2006) Evolution of microstructure and precipitation in heat-treatable aluminium alloys during ECA pressing and subsequent heat treatment. In, Horita, Zenji (ed.) Nanomaterials by Severe Plastic Deformation. SPD-3: 3rd International Conference on Nanomaterials by Severe Plastic Deformation Switzerland, Trans Tech, 275-280. (Materials Science Forum 503-504).
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Description/Abstract
The precipitation and evolution of microstructure in a spray-cast Al-7034 alloy and a commercial wrought Al-2024 alloy were studied after equal-channel angular pressing (ECAP) using transmission electron microscopy and differential scanning calorimetry (DSC). Microstructural examination showed the grain sizes of both alloys were reduced to the range of ~0.3–0.5 µm through ECAP. The DSC analysis identified the occurrence of thermal effects involving the formation, coarsening, dissolution and melting of the precipitate phases and concurrent recrystallization. The heating and ageing response of the alloys processed by ECAP was identified by micro-hardness testing of the samples after interrupted heating and ageing treatments.
| Item Type: | Book Section |
|---|---|
| Additional Information: | Series ISSN 0255-5476 |
| ISBNs: | 0878499857 (hardback) |
| Related URLs: | |
| Keywords: | ageing treatment, aluminium alloys, dsc, equal-channel angular pressing |
| Subjects: | T Technology > TN Mining engineering. Metallurgy Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Engineering Sciences |
| Item ID: | 19166 |
| Date Deposited: | 16 Jan 2006 |
| Last Modified: | 28 Jun 2012 09:45 |
| Contributors: | Gao, Nong (Author) Starink, Marco J. (Author) Furukawa, Minoru (Author) Horita, Zenji (Author) Xu, Cheng (Author) Langdon, Terence G. (Author) Horita, Zenji (Editor) |
| Date: | 2006 |
| Additional Information: | Series ISSN 0255-5476 |
| Status: | Published |
| Publisher: | Trans Tech |
| URI: | http://eprints.soton.ac.uk/id/eprint/19166 |
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