Suitability of nickel aluminium bronze alloy fabricated by laser powder bed fusion to be used in the marine environment

Arcos, C., Ramos-Grez, J.A., Sancy, M., La Fé-Perdomo, I., Setchi, R. ORCID: https://orcid.org/0000-0002-7207-6544 and Guerra, C. 2024. Suitability of nickel aluminium bronze alloy fabricated by laser powder bed fusion to be used in the marine environment. Corrosion Science 226 , 111656. 10.1016/j.corsci.2023.111656

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Abstract

Nickel aluminium bronze alloy specimens were produced using laser powder bed fusion (LPBF) and subjected to heat treatment to understand their corrosion behaviour when exposed to a 3.5 wt% NaCl solution. Electrochemical analysis, including impedance spectroscopy and polarization curves, was performed to characterize the samples after 30 days of immersion. The findings reveal that the as-built samples exhibit superior corrosion resistance compared to the heat-treated samples, primarily attributed to the lower presence of intermetallic phases, which hinder the alloy's passivation process.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Elsevier
ISSN:	0010-938X
Date of First Compliant Deposit:	13 November 2023
Date of Acceptance:	7 November 2023
Last Modified:	07 Nov 2024 02:45
URI:	https://orca.cardiff.ac.uk/id/eprint/163872

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