Novel ageing treatments to enhance mechanical properties of aluminium alloys

R. N. Lumley, I. J. Polmear, A. J. Morton

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

8 Citations (Scopus)


Simultaneous increases in tensile properties and fracture toughness of the order of 10-30% may be achieved by means of novel ageing treatments. These effects have been observed for many aluminium alloys that respond to precipitation hardening, including the wrought 2000, 6000, 7000 series and lithium-containing alloys, as well as various casting alloys. Novel aging treatments have been employed that involve interrupting artificial aging with a dwell period at lower temperature. The effect of these treatments is believed to be control of secondary precipitation which increases the precipitate number densities and reduces precipitate sizes in the fully hardened condition. An overview of the work in progress will be presented together with results attained from selected alloys.

Original languageEnglish
Title of host publicationAdvances in the Metallurgy of Aluminum Alloys
EditorsM. Tiyakioglu
Number of pages7
Publication statusPublished - 1 Dec 2001
EventProceedings from Materials Solutions Conference 2001 - Indianapolis, United States of America
Duration: 5 Nov 20018 Nov 2001

Publication series

NameAdvances in the Metallurgy of Aluminum Alloys


ConferenceProceedings from Materials Solutions Conference 2001
Country/TerritoryUnited States of America

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