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Ageing Characteristics and Microstructural Evolution in Microalloyed Al Alloys

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Abstract:

The present paper outlines the effect of small addition of Sc,Ag and Mg on the ageing characteristics and microstructural evolution in some microalloyed Al alloys,such as Al-Cu-Mg, Al-Ag and Al-Li alloys.Small quantities of these microalloying elements can modify the ageing characteristics of these alloys,and significant changes have been found in their microstructural evolution after small microalloying element additions. The observed effects are explained in terms of the atomic behaviour during the early ageing stage,and one of the key factors governing this effect is Sc/Vacancy mechanism.

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Periodical:

Materials Science Forum (Volumes 539-543)

Pages:

438-445

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.539-543.438

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Online since:

March 2007

Authors:

Zhi Gang Chen, Zi Qiao Zheng, Jue Zhong, Simon P. Ringer

Keywords:

Ag, Aluminium Alloy, Microalloyed, Microstructural Evolution

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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