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Influence of corrosion of self-piercing riveted high strength aluminium alloy joints with button cracks on the mechanical strength
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Li, Dezhi, Han, Li, Chrysanthou, Andreas and Shergold, Mike (2018) Influence of corrosion of self-piercing riveted high strength aluminium alloy joints with button cracks on the mechanical strength. Journal of Material Science and Technology Research, 5 . pp. 16-27. doi:10.15377/2410-4701.2018.05.4
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WRAP-influence-corrosion-sefl-piercing-aluminium-joints-strength-Li-2019.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution Non-commercial. Download (6Mb) | Preview |
Official URL: http://dx.doi.org/10.15377/2410-4701.2018.05.4
Abstract
For high strength aluminium alloys, such as AA6008T61 and AA6111 PFHT, when they are joined as the bottom material by self-piercing riveting (SPR), they tend to crack at the joint buttons. These cracks, especially those penetrated to the rivets, may cause galvanic corrosion problem with the steel rivet. In this paper, the mechanical strength of four stack/die combinations with different joint button cracking severity was studied before and after salt-spray corrosion test. The results showed that corrosion on the severely cracked joints was worse than that on the joints with small cracks and the corrosion on the stack with the same top and bottom material was less than that on the stack with different top and bottom materials. For all joints the static lap shear strength after corrosion was improved, but the static T peel strength after corrosion was slightly reduced or did not have obvious change. The results also showed that after corrosion the lap shear fatigue strength of the specimens with severe cracks did not have obvious change, but the lap shear fatigue strength of the specimens with small cracks slightly reduced.
| Item Type: | Journal Article | |||||||||
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| Subjects: | T Technology > TJ Mechanical engineering and machinery | |||||||||
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | |||||||||
| Library of Congress Subject Headings (LCSH): | Aluminum—Fatigue , Metals—Corrosion fatigue | |||||||||
| Journal or Publication Title: | Journal of Material Science and Technology Research | |||||||||
| Publisher: | Zeal Press | |||||||||
| ISSN: | 2410-4701 | |||||||||
| Official Date: | 2018 | |||||||||
| Dates: |
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| Date of first compliant deposit: | 18 July 2019 | |||||||||
| Volume: | 5 | |||||||||
| Page Range: | pp. 16-27 | |||||||||
| DOI: | 10.15377/2410-4701.2018.05.4 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access | |||||||||
| RIOXX Funder/Project Grant: |
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