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Suitability of aluminium alloy AA5083 in marine environments

Kannoorpatti, Krishnan and Surti, Hemangi (2012). Suitability of aluminium alloy AA5083 in marine environments. In: Corrosion 2012 - Annual Conference of the Australasian Corrosion Association, Melbourne, 11-14 November 2012.

Document type: Conference Paper
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IRMA ID 82794376xPUB60
Author Kannoorpatti, Krishnan
Surti, Hemangi
Title Suitability of aluminium alloy AA5083 in marine environments
Conference Name Corrosion 2012 - Annual Conference of the Australasian Corrosion Association
Conference Location Melbourne
Conference Dates 11-14 November 2012
Conference Publication Title Proceedings of the Annual Conference of the Australasian Corrosion Association 2012
Place of Publication Kerrimuir, Vic.
Publisher Australasian Corrosion Association (ACA)
Publication Year 2012
ISBN 978-1-62276-969-8   (check CDU catalogue open catalogue search in new window)
Start Page 982
End Page 990
Total Pages 9
HERDC Category E1 - Conference Publication (DIISR)
Abstract Aluminium alloys are being increasingly utilised in marine environments. Their excellent corrosion resistance combined with an excellent weight to strength ratio makes them highly attractive for structural applications. Aluminium alloy 5083 is an attractive material for marine applications. These alloys produce very low corrosion rates in marine water. However, they are prone to pitting when there is insufficient oxidiser or oxygen. Anodising has been found to reduce pitting damage but this requires maintenance every 9 months. Cathodic or anodic protection, as per AS2832.3- 2005, will provide good protection against general, pitting and crevice corrosion. Painting aluminium structures has been found to be not very beneficial to corrosion resistance unless it has sufficient thickness and maintained regularly. Structures for marine environments need to be modular in construction and be easily replaceable if there is a need.
Description for Link Link to publisher site
URL http://www.proceedings.com/17513.html
 
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Created: Fri, 17 Jan 2014, 00:20:09 CST