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Marine corrosion performance of copper alloy UNS C69100

Nie, M; Zbihlyj, J; Wharton, JA; (2017) Marine corrosion performance of copper alloy UNS C69100. In: (Proceedings) CORROSION 2017. (pp. pp. 2055-2069). NACE International: New Orleans, Louisiana, USA. Green open access

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Abstract

Tungum alloy (UNS C69100) is an aluminum-nickel-silicon brass 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 were also compared with six alternative alloys: UNS S31603, UNS S31254, UNS S32750, UNS N04400, UNS N08904 and UNS C36000. Galvanic coupling behavior of wrought UNS C69100 bar and seamless tubing against these six alloys in a 3.5% NaCl solution for 30 days immersion are also reported in this paper.

Type: Proceedings paper
Title: Marine corrosion performance of copper alloy UNS C69100
Event: CORROSION 2017
ISBN-13: 9781510840348
Open access status: An open access version is available from UCL Discovery
Publisher version: https://www.onepetro.org/conference-paper/NACE-201...
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery
URI: https://discovery.ucl.ac.uk/id/eprint/10060800
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