Microstructural features of fusion welded 2024-T351

Lefebvre, F., Wang, S., Starink, M.J. and Sinclair, I., (2002) Microstructural features of fusion welded 2024-T351 Gregson, P.J. and Harris, S. (eds.) In Aluminium Alloys 2002: Their Physical and Mechanical Properties. Trans Tech., pp. 1555-1560.


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Microstructural features have been investigated in fusion welded samples of the established Al-Cu-Mg-Mn airframe alloy, 2024-T351. Specifically, the local strengthening and precipitate conditions have been assessed for variable polarity plasma arc (VPPA) welding of 13mm thick plate. Microstructures were studied using a combination of differential scanning calorimetry (DSC) and transmission electron microscopy (TEM). Micro-hardness measurements (Vickers hardness) were carried out, identifying a two peak structure in the heat affected zone (HAZ) and a minimum plateau in the fusion zone. The influences of aging, re-solutionising and re-precipitation are noted across the HAZ, along with the incidence of the omega(Al2Cu) phase.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Series ISSN 0255-5476
ISBNs: 0878498990 (print)
Venue - Dates: 8th International Conference ICAA8, 2002-07-02 - 2002-07-05
Related URLs:
Keywords: 2024, vppa weld, microstructure, dsc, tem, Vickers hardness, GP zones, clusters, strength, precipitation
Subjects: T Technology > TN Mining engineering. Metallurgy
Q Science > QC Physics
ePrint ID: 22057
Date :
Date Event
Date Deposited: 22 Mar 2006
Last Modified: 16 Apr 2017 22:53
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/22057

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