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Marine corrosion performance of copper alloy UNS C69100

Marine corrosion performance of copper alloy UNS C69100
Marine corrosion performance of copper alloy UNS C69100
Tungum alloy (UNS C69100) is an aluminium-nickel-silicon brass (chemical composition: 81-84% Cu, 0.70-1.20 Al, 0.8-1.40 Ni, 0.80-1.30 Si, with the remainder Zn) and is reported to have a good corrosion performance in marine environments (fully wetted, splash zone and atmospheric conditions). In order to gain an in-depth understanding of the marine corrosion performance of this alloy, electrochemical test methods including open-circuit potential, electrochemical impedance spectroscopy, potentiodynamic polarization, and zero-resistance ammetry were used for corrosion investigation of UNS C69100 in a 3.5 wt.% sodium chloride aqueous testing solution, in combination with optical microscopy and scanning electron microscopy. The corrosion properties of UNS C69100 obtained by electrochemical methods are also compared to six other alloys: UNS S31603, UNS S31254, UNS S32750, UNS N04400, UNS N08904 and UNS C36000. Galvanic coupling behaviour of UNS C69100 against these six alloys in a 3.5% NaCl solution for 30 days immersion are also reported in this paper.
2055-2069
NACE
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Wharton, Julian
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Zbihlyj, John
96a7ac19-ada5-4154-8ede-1fbcf36ab9c9
Nie, Mengyan
a8613738-d74a-40fb-8881-08069fb0a34b
Wharton, Julian
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Zbihlyj, John
96a7ac19-ada5-4154-8ede-1fbcf36ab9c9

Nie, Mengyan, Wharton, Julian and Zbihlyj, John (2017) Marine corrosion performance of copper alloy UNS C69100. In Corrosion Conference and Expo 2017. NACE. pp. 2055-2069 .

Record type: Conference or Workshop Item (Paper)

Abstract

Tungum alloy (UNS C69100) is an aluminium-nickel-silicon brass (chemical composition: 81-84% Cu, 0.70-1.20 Al, 0.8-1.40 Ni, 0.80-1.30 Si, with the remainder Zn) and is reported to have a good corrosion performance in marine environments (fully wetted, splash zone and atmospheric conditions). In order to gain an in-depth understanding of the marine corrosion performance of this alloy, electrochemical test methods including open-circuit potential, electrochemical impedance spectroscopy, potentiodynamic polarization, and zero-resistance ammetry were used for corrosion investigation of UNS C69100 in a 3.5 wt.% sodium chloride aqueous testing solution, in combination with optical microscopy and scanning electron microscopy. The corrosion properties of UNS C69100 obtained by electrochemical methods are also compared to six other alloys: UNS S31603, UNS S31254, UNS S32750, UNS N04400, UNS N08904 and UNS C36000. Galvanic coupling behaviour of UNS C69100 against these six alloys in a 3.5% NaCl solution for 30 days immersion are also reported in this paper.

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More information

Submitted date: 9 May 2016
Accepted/In Press date: 28 June 2016
e-pub ahead of print date: July 2017
Published date: July 2017
Venue - Dates: NACE Corrosion 2017, New Orleans, United States, 2017-03-26 - 2017-03-29
Organisations: nCATS Group

Identifiers

Local EPrints ID: 402646
URI: http://eprints.soton.ac.uk/id/eprint/402646
PURE UUID: f8862bb7-681e-4d65-ae06-ad5a7ac02b9e
ORCID for Mengyan Nie: ORCID iD orcid.org/0000-0002-7758-760X
ORCID for Julian Wharton: ORCID iD orcid.org/0000-0002-3439-017X

Catalogue record

Date deposited: 15 Nov 2016 12:23
Last modified: 22 Nov 2021 02:54

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Contributors

Author: Mengyan Nie ORCID iD
Author: Julian Wharton ORCID iD
Author: John Zbihlyj

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