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).

Download

[img]
Preview
PDF
Download (283Kb)

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
ePrint ID: 19166
Date Deposited: 16 Jan 2006
Last Modified: 27 Mar 2014 18:08
URI: http://eprints.soton.ac.uk/id/eprint/19166

Actions (login required)

View Item View Item

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics