Recent developments in corrosion inhibitors based on rare earth metal compounds

Forsyth, Maria, Seter, Marianne, Tan, Yongjun and Hinton, Bruce 2012, Recent developments in corrosion inhibitors based on rare earth metal compounds, in APCCC 2012 : Proceedings of the 16th Asian Pacific Corrosion Control Conference, Department of Materials Science and Engineering, NCKU, Kaohsiung City, Taiwan, pp. 1-8.

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Title Recent developments in corrosion inhibitors based on rare earth metal compounds
Author(s) Forsyth, Maria
Seter, Marianne
Tan, Yongjun
Hinton, Bruce
Conference name Asian Pacific Corrosion Control. Conference (16th : 2012 : Kaohsiung City, Taiwan)
Conference location Kaohsiung City, Taiwan
Conference dates 21-24 Oct. 2012
Title of proceedings APCCC 2012 : Proceedings of the 16th Asian Pacific Corrosion Control Conference
Editor(s) [Unknown]
Publication date 2012
Conference series Asian Pacific Corrosion Control Conference
Start page 1
End page 8
Total pages 8
Publisher Department of Materials Science and Engineering, NCKU
Place of publication Kaohsiung City, Taiwan
Keyword(s) aluminium
steel
corrosion inhibitors
rare earth compounds
Summary Rare earth organic compounds can provide an environmentally safe and non-toxic alternative to chromates as corrosion inhibitors for some steel and aluminium applications. For steel lanthanum 4-hydroxy cinnamate offers corrosion protection and reduces the susceptibility to hydrogen embrittlement. Recent work has also indicated that it inhibits the corrosion of steel in environments containing high levels of carbon dioxide. For aluminium alloys, cerium diphenyl phosphate provides excellent corrosion inhibition in chloride environments, and reduces susceptibly to stress corrosion cracking. Furthermore, for both steel and aluminium alloys filiform corrosion can be suppressed when rare earth inhibitor compounds are added as pigments to polymer coatings. The levels of inhibition observed are thought to be due to synergistic effects between the rare earth and organic parts of these novel compounds, and are related to the various species that may be present in the complex chemical conditions that develop in solution close to a metal surface. This paper reviews some of the published research conducted by the group at Deakin University over recent years.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category E1 Full written paper - refereed
Persistent URL http://hdl.handle.net/10536/DRO/DU:30052887

Document type: Conference Paper
Collection: Institute for Frontier Materials
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