Hamada, A.S., Järvenpää, A., Ahmed, M.M.Z. et al. (4 more authors) (2015) The microstructural evolution of friction stir welded AA6082-T6 aluminum alloy during cyclic deformation. Materials Science and Engineering: A , 642. 366 -376. ISSN 0921-5093
Abstract
The fatigue behavior of a thick section friction stir welded AA6082-T6 aluminum alloy was studied to compare damage mechanisms in the weld zone and the base metal. Fully reversed tension-compression strain-controlled fatigue tests were conducted to determine the cyclic stress response and stored energy to failure. Microstructure evolution during cyclic straining was followed using secondary electron imaging and electron backscatter diffraction in a scanning electron microscope. Fatigue cracking along grain boundaries and the formation of slip bands were observed to be the fatigue-induced microstructural features in the friction-stir-welded structure. In the base metal, micron-sized particles led to particle-induced cracking.
Metadata
| Authors/Creators: |
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| Copyright, Publisher and Additional Information: | © 2015 Elsevier B.V. All rights reserved |
| Keywords: | Aluminum alloys; Friction stir welding; Fatigue; Cyclic deformation; Grain boundary cracking |
| Dates: |
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| Institution: | The University of Sheffield |
| Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
| Depositing User: | Symplectic Sheffield |
| Date Deposited: | 14 Jan 2016 14:36 |
| Last Modified: | 11 Mar 2016 04:24 |
| Published Version: | http://dx.doi.org/10.1016/j.msea.2015.06.100 |
| Status: | Published |
| Publisher: | Elsevier |
| Refereed: | Yes |
| Identification Number: | https://doi.org/10.1016/j.msea.2015.06.100 |
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