Revisiting the corrosion characteristics of B30 copper-nickel alloy under complete seawater exposure and crevice corrosion conditions: A comprehensive TOF-SIMS study of corrosion-product films

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Scripta Materialia Pub Date : 2025-01-29 DOI:10.1016/j.scriptamat.2025.116577

Ruyi Han, He Xie, Kunfeng Li, Ruoling Guan, Xiaowei Sun, Guobing Chen, Zichun Yang

引用次数: 0

Abstract

In this study, the corrosion behavior of B30 copper-nickel alloy under two typical service conditions are comparatively investigated. Note that, the environmental conditions of crevice corrosion result in the transition of the corrosion film from a single-layer structure to a double-layer structure. Under full seawater exposure condition, a single-layer corrosion film is discovered, consisting of NiO/Ni(OH)₂ and Cu₂O/Cu₂(OH)₃Cl. However, under crevice corrosion, a distinct double-layer film structure emerges, with Ni(OH)₂ predominating in the inner and a combination of Cu₂O/Cu₂(OH)₃Cl and Ni(OH)₂ in the outer, which can be attributed to the varying chloride ion tolerance levels of Cu₂O and NiO.

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来源期刊

Scripta Materialia 工程技术-材料科学：综合

CiteScore

11.40

自引率

5.00%

发文量

581

审稿时长

34 days

期刊介绍： Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.