Analysis of local microstructure and hardness of 13mm gauge
2024-T351 AA friction stir welds
Analysis of local microstructure and hardness of 13mm gauge
2024-T351 AA friction stir welds
The friction stir welding process has been used to join 13mm gauge 2024-T351 aluminium alloy plates together. A detailed microstructural study of the resulting weld was carried out using Differential Scanning Calorimetry (DSC), hardness testing, Scanning Electron Microscopy (SEM) and Electron Backscatter Diffraction (EBSD). DSC was used to explain the hardness results at a number of regions across the weld in terms of co-cluster dissolution and reformation and S phase formation, coarsening and dissolution. The “onion rings” structure found in the nugget weld was shown to be the result of a combination of the slight grain size variations and a change in nature and size of the particles present (i.e. intragranular versus intergranular). The variation in corrosion properties and hardness of the rings is discussed in terms of the local microstructure and quench sensitivities.
friction stir weld, Al-Cu-Mg, co-clusters, precipitate, DSC, EBSD, hardness, fatigue
276-284
Booth, D.P.P.
87223fcc-985d-453c-99c5-d32e6727b2b8
Starink, M.J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
2007
Booth, D.P.P.
87223fcc-985d-453c-99c5-d32e6727b2b8
Starink, M.J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Sinclair, I.
6005f6c1-f478-434e-a52d-d310c18ade0d
Booth, D.P.P., Starink, M.J. and Sinclair, I.
(2007)
Analysis of local microstructure and hardness of 13mm gauge
2024-T351 AA friction stir welds.
Materials Science and Technology, 23, .
Abstract
The friction stir welding process has been used to join 13mm gauge 2024-T351 aluminium alloy plates together. A detailed microstructural study of the resulting weld was carried out using Differential Scanning Calorimetry (DSC), hardness testing, Scanning Electron Microscopy (SEM) and Electron Backscatter Diffraction (EBSD). DSC was used to explain the hardness results at a number of regions across the weld in terms of co-cluster dissolution and reformation and S phase formation, coarsening and dissolution. The “onion rings” structure found in the nugget weld was shown to be the result of a combination of the slight grain size variations and a change in nature and size of the particles present (i.e. intragranular versus intergranular). The variation in corrosion properties and hardness of the rings is discussed in terms of the local microstructure and quench sensitivities.
Text
FSW2024_ppr_vs_2.2_(revised_&_proof_corr)_web.pdf
- Accepted Manuscript
More information
Published date: 2007
Keywords:
friction stir weld, Al-Cu-Mg, co-clusters, precipitate, DSC, EBSD, hardness, fatigue
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 41408
URI: http://eprints.soton.ac.uk/id/eprint/41408
ISSN: 0267-0836
PURE UUID: e34e7859-a665-4db2-b8e8-3d58683f8bd6
Catalogue record
Date deposited: 07 Sep 2006
Last modified: 15 Mar 2024 08:29
Export record
Contributors
Author:
D.P.P. Booth
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics