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Unmasking chloride attack on the passive film of metals

Author

Listed:
  • B. Zhang

    (Chinese Academy of Sciences)

  • J. Wang

    (Chinese Academy of Sciences)

  • B. Wu

    (Chinese Academy of Sciences)

  • X. W. Guo

    (Chinese Academy of Sciences)

  • Y. J. Wang

    (Chinese Academy of Sciences)

  • D. Chen

    (Chinese Academy of Sciences)

  • Y. C. Zhang

    (Chinese Academy of Sciences)

  • K. Du

    (Chinese Academy of Sciences)

  • E. E. Oguzie

    (Federal University of Technology Owerri, PMB)

  • X. L. Ma

    (Chinese Academy of Sciences
    Lanzhou University of Technology)

Abstract

Nanometer-thick passive films on metals usually impart remarkable resistance to general corrosion but are susceptible to localized attack in certain aggressive media, leading to material failure with pronounced adverse economic and safety consequences. Over the past decades, several classic theories have been proposed and accepted, based on hypotheses and theoretical models, and oftentimes, not sufficiently nor directly corroborated by experimental evidence. Here we show experimental results on the structure of the passive film formed on a FeCr15Ni15 single crystal in chloride-free and chloride-containing media. We use aberration-corrected transmission electron microscopy to directly capture the chloride ion accumulation at the metal/film interface, lattice expansion on the metal side, undulations at the interface, and structural inhomogeneity on the film side, most of which had previously been rejected by existing models. This work unmasks, at the atomic scale, the mechanism of chloride-induced passivity breakdown that is known to occur in various metallic materials.

Suggested Citation

  • B. Zhang & J. Wang & B. Wu & X. W. Guo & Y. J. Wang & D. Chen & Y. C. Zhang & K. Du & E. E. Oguzie & X. L. Ma, 2018. "Unmasking chloride attack on the passive film of metals," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-04942-x
    DOI: 10.1038/s41467-018-04942-x
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    Cited by:

    1. Sixie Zhang & Yunan Wang & Shuyu Li & Zhongfeng Wang & Haocheng Chen & Li Yi & Xu Chen & Qihao Yang & Wenwen Xu & Aiying Wang & Zhiyi Lu, 2023. "Concerning the stability of seawater electrolysis: a corrosion mechanism study of halide on Ni-based anode," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Kaifa Du & Enlai Gao & Chunbo Zhang & Yongsong Ma & Peilin Wang & Rui Yu & Wenmiao Li & Kaiyuan Zheng & Xinhua Cheng & Diyong Tang & Bowen Deng & Huayi Yin & Dihua Wang, 2023. "An iron-base oxygen-evolution electrode for high-temperature electrolyzers," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    3. X. X. Wei & B. Zhang & B. Wu & Y. J. Wang & X. H. Tian & L. X. Yang & E. E. Oguzie & X. L. Ma, 2022. "Enhanced corrosion resistance by engineering crystallography on metals," Nature Communications, Nature, vol. 13(1), pages 1-13, December.
    4. Shucai Zhang & Hao Feng & Huabing Li & Zhouhua Jiang & Tao Zhang & Hongchun Zhu & Yue Lin & Wei Zhang & Guoping Li, 2023. "Design for improving corrosion resistance of duplex stainless steels by wrapping inclusions with niobium armour," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    5. Xin Kang & Fengning Yang & Zhiyuan Zhang & Heming Liu & Shiyu Ge & Shuqi Hu & Shaohai Li & Yuting Luo & Qiangmin Yu & Zhibo Liu & Qiang Wang & Wencai Ren & Chenghua Sun & Hui-Ming Cheng & Bilu Liu, 2023. "A corrosion-resistant RuMoNi catalyst for efficient and long-lasting seawater oxidation and anion exchange membrane electrolyzer," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    6. Guo, Junyan & Gao, Ruihong & Tong, Zhaoming & Zhang, Haijun & Duan, Hongjuan & Huang, Liang & Lu, Lilin & Jia, Quanli & Zhang, Shaowei, 2023. "Three eagles with one arrow: Simultaneous production of hydrogen, aluminum ethoxide, and supported metal catalysts via efficient and facile reaction between aluminum and ethanol," Energy, Elsevier, vol. 263(PD).

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