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 Horita, Zenji (ed.) In Nanomaterials by Severe Plastic Deformation. Trans Tech., pp. 275-280.

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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: Conference or Workshop Item (Paper)
Additional Information: Series ISSN 0255-5476
ISBNs: 0878499857 (print)
Venue - Dates: SPD-3: 3rd International Conference on Nanomaterials by Severe Plastic Deformation, 2005-09-21 - 2005-09-26
Related URLs:
Keywords: ageing treatment, aluminium alloys, dsc, equal-channel angular pressing
Subjects:
ePrint ID: 19166
Date :
Date Event
2006Published
Date Deposited: 16 Jan 2006
Last Modified: 16 Apr 2017 23:06
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/19166

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