Corrosion evolution of UNS C90300 bronze in simulated acid rain of Hong Kong

Zhenju Zhou; Yu Zhou; Yingjian Huang; Qiuqing Zhu; Yongming Tang

doi:10.1002/sia.7086

Corrosion evolution of UNS C90300 bronze in simulated acid rain of Hong Kong

Zhenju Zhou, Yu Zhou, Yingjian Huang, Qiuqing Zhu, Yongming Tang

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

Abstract

Corrosion evolutions of UNS C90300 bronzes with and without artificial patina were investigated in the simulated acid rain of Hong Kong. The corrosion products mainly composed of cuprite were formed on the surface exhibiting slight protection for the bronze substrate. The ratios of Sn and Zn in the corrosion products are lower than in the alloy. The artificial patina effectively enhances the corrosion resistance of bronze substrate, even after 30 days of immersion. For both bare and patinated bronzes the Sn- and Zn-based species are absent in the outer layers of corrosion products, and Cu₂O species in the outer layer can partially transform into Cu (II) ionic state due to the abundant supply of dissolved oxygen.

Original language	English
Pages (from-to)	734-746
Number of pages	13
Journal	Surface and Interface Analysis
Volume	54
Issue number	7
DOIs	https://doi.org/10.1002/sia.7086
State	Published - Jul 2022

Keywords

EIS
acid rain
bronze
corrosion evolutions
corrosion products
surface analysis

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10.1002/sia.7086

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abstract = "Corrosion evolutions of UNS C90300 bronzes with and without artificial patina were investigated in the simulated acid rain of Hong Kong. The corrosion products mainly composed of cuprite were formed on the surface exhibiting slight protection for the bronze substrate. The ratios of Sn and Zn in the corrosion products are lower than in the alloy. The artificial patina effectively enhances the corrosion resistance of bronze substrate, even after 30 days of immersion. For both bare and patinated bronzes the Sn- and Zn-based species are absent in the outer layers of corrosion products, and Cu2O species in the outer layer can partially transform into Cu (II) ionic state due to the abundant supply of dissolved oxygen.",

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AU - Zhou, Zhenju

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AU - Huang, Yingjian

AU - Zhu, Qiuqing

AU - Tang, Yongming

PY - 2022/7

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N2 - Corrosion evolutions of UNS C90300 bronzes with and without artificial patina were investigated in the simulated acid rain of Hong Kong. The corrosion products mainly composed of cuprite were formed on the surface exhibiting slight protection for the bronze substrate. The ratios of Sn and Zn in the corrosion products are lower than in the alloy. The artificial patina effectively enhances the corrosion resistance of bronze substrate, even after 30 days of immersion. For both bare and patinated bronzes the Sn- and Zn-based species are absent in the outer layers of corrosion products, and Cu2O species in the outer layer can partially transform into Cu (II) ionic state due to the abundant supply of dissolved oxygen.

AB - Corrosion evolutions of UNS C90300 bronzes with and without artificial patina were investigated in the simulated acid rain of Hong Kong. The corrosion products mainly composed of cuprite were formed on the surface exhibiting slight protection for the bronze substrate. The ratios of Sn and Zn in the corrosion products are lower than in the alloy. The artificial patina effectively enhances the corrosion resistance of bronze substrate, even after 30 days of immersion. For both bare and patinated bronzes the Sn- and Zn-based species are absent in the outer layers of corrosion products, and Cu2O species in the outer layer can partially transform into Cu (II) ionic state due to the abundant supply of dissolved oxygen.

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KW - corrosion products

KW - surface analysis

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Corrosion evolution of UNS C90300 bronze in simulated acid rain of Hong Kong

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