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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.

Record type: Conference or Workshop Item (Paper)


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.

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Published date: 2002
Additional Information: Series ISSN 0255-5476
Venue - Dates: 8th International Conference ICAA8, 2002-07-02 - 2002-07-05
Keywords: 2024, vppa weld, microstructure, dsc, tem, Vickers hardness, GP zones, clusters, strength, precipitation


Local EPrints ID: 22057
ISBN: 0878498990
PURE UUID: 08461186-d877-4e9b-bf35-b954ee7c1d61

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Date deposited: 22 Mar 2006
Last modified: 17 Jul 2017 16:23

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Author: F. Lefebvre
Author: S. Wang
Author: M.J. Starink
Author: I. Sinclair
Editor: P.J. Gregson
Editor: S. Harris

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