- Title
- Atmospheric and immersion corrosion of steel alloyed with aluminium
- Creator
- Jeffrey, R.; Melchers, R. E.
- Relation
- ARC.DP140103388 http://purl.org/au-research/grants/arc/DP140103388 & DP0451308
- Relation
- Corrosion Engineering Science and Technology Vol. 56, Issue 2, p. 162-170
- Publisher Link
- http://dx.doi.org/10.1080/1478422X.2020.1827746
- Publisher
- Taylor & Francis
- Resource Type
- journal article
- Date
- 2021
- Description
- This paper reports a systematic study of longer-term marine atmospheric and immersion corrosion losses for mild steel alloyed with small to moderate amounts (0, 2, 4, 6 and 8% by weight) of aluminium. Such steel coupons were exposed for up to 3 years in temperate sea water and also just below the mud-line, and for up to one year at two severe atmospheric marine locations. Compared with the coupons without aluminium, higher aluminium content reduced corrosion loss in immersed conditions from 10.5% after one year to 2.8% after 3 years. Below the mud-line corrosion losses showed a similar trend but were more varied. In the marine atmosphere, the reduction in corrosion loss for increased aluminium content ranged from 58 to 81% after one-year exposure. The results show that aluminium alloying above about 4% has limited additional benefit for corrosion in any of the marine exposure environments.
- Subject
- corrosion; steel; alloying; aluminium; marine; immersion; SDG 14; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1460740
- Identifier
- uon:46042
- Identifier
- ISSN:1478-422X
- Language
- eng
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