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A Study of the Microstructural Evolution and Strengthening Effects of Non-Spherical Precipitates in an Al-Cu-Based Alloy

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Abstract:

The microstructural evolution and associated strengthening during isothermal ageing of an Al-3Cu-0.05Sn reinforced by non-spherical θ' (Al2Cu) precipitates is studied. Emphasis is placed on the plate shape of the θ'. It is found that the microstructure parameters governing the magnitude of the precipitation strengthening effect are completely different from the classical case of spherical precipitates. New possibilities for microstructure design are discussed.

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Periodical:

Materials Science Forum (Volumes 561-565)

Pages:

2317-2320

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.2317

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Online since:

October 2007

Authors:

Julien da Costa Teixeira, Laure Bourgeois, Christopher R. Hutchinson

Keywords:

Al-Cu Based Aluminium Alloys, Non-Spherical Precipitates, Precipitation Strengthening

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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