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The Role of Copper in the Precipitation Kinetics of 6000 Series Al Alloys

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Abstract:

The role of Cu in precipitation behavior of 6000 series aluminum alloys has been investigated by isothermal calorimetry and transmission electron microscopy. The newly developed analytical techniques have been used to evaluate the precipitation kinetics in alloys with or without an initial pre-aging history. It has been found that Cu addition results in increasing the rate of precipitation when artificial aging is applied immediately after solutionizing and quenching. However, Cu has no significant effect on the kinetics of precipitation in alloys with the pre-aging history, while it produces finer microstructures in the pre-aged and then artificially aged alloys. These observations have been explained by the effect of Cu on increasing the rate of precipitate nucleation in 6000 series alloys. It has also been suggested that the effect of Cu on nucleation arises from the role of Cu on the cluster formation during and/or immediately after quenching.

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Periodical:

Materials Science Forum (Volumes 519-521)

Pages:

169-176

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.519-521.169

Citation:

Cite this paper

Online since:

July 2006

Authors:

S. Esmaeili, David J. Lloyd

Keywords:

Aluminium Alloy, Clustering, Growth, Nucleation, Precipitation Kinetics

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References

[1] D.J. Lloyd, Advances in Industrial Materials, D.S. Wilkinson, W.J. Poole, eds. (The Metallurgical Society of CIM, Canada 1998) p.3.

Google Scholar

[2] P.E. Fortin, M.J. Bull, D.M. Moore, SAE Technical Paper Series 830096 (International Congress & Exhibition, Detroit, MI, Feb. 28 - March 4, SAE, USA 1983).

Google Scholar

[3] D.J. Lloyd, Materials Science Forum Vol. 28 (2004), J.F. Nie, A.J. Morton, B.C. Muddle eds. (Institute of Materials Engineering Austalasia Ltd, Australia 2004) p.107.

Google Scholar

[4] A.K. Gupta, J. B. Bookbinder, H. S. Sang and D. J. Lloyd, Materials Science Forum, Vol. 331-337 (2000) 1297.

Google Scholar

[5] A.K. Gupta, D.J. Lloyd, S.A. Court, Materials Science and Engineering A316 (2001)11.

Google Scholar

[6] S.M. Hirth, G.J. Marshall, S.A. Court, D.J. Lloyd. Materials Science and Engineering A319- 321 (2001) 452.

Google Scholar

[7] D.J. Lloyd, A.K. Gupta, Thermec 97 (International Conference on Thermomechanical processing of Steels and Other Materials), T. Chandra, T. Sakai eds. (TMS, USA 1007) p.99.

Google Scholar

[8] Miao WF, Laughlin DE. Metallurgical and Materials Transactions A 31A (2000) 361.

Google Scholar

[9] S. Esmaeili, D.J. Lloyd, Scripta Materialia 50 (2004) 155.

Google Scholar

[10] S. Esmaeili, X. Wang, D.J. Lloyd, W.J. Poole, Metallurgical and Materials Transactions A 34A (2003) 751.

Google Scholar

[11] S. Esmaeili, D.J. Lloyd, W.J. Poole, Acta Materialia 51 (2003) 2243.

Google Scholar

[12] S. Esmaeili, D.J. Lloyd, W.J. Poole, Acta Materialia 51 (2003) 3467.

Google Scholar

[13] S. Esmaeili, D.J. Lloyd, Acta Materialia 53 (2005) 5257.

Google Scholar

[14] S. Esmaeili, D.J. Lloyd, Materials Characterization 55 (2005) 307.

Google Scholar

[15] S. Esmaeili, Unpublished Results (2004).

Google Scholar

[16] A. Morely, MEng Thesis, University of Oxford (2004).

Google Scholar

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