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A Novel Model For The Relationship Between The Healing Time Of The Inert Film And The Incubation Period Of Localized Corrosion

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  • MINGHAN ZHAO

    (School of Material and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, P. R. China†State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan Iron and Steel Research Institute, AnGang Group, Anshan 114000, P. R. China)

  • YI REN

    (��State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan Iron and Steel Research Institute, AnGang Group, Anshan 114000, P. R. China)

  • DONGXU CHEN

    (School of Material and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, P. R. China)

  • HAODONG WU

    (School of Material and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, P. R. China)

  • JING LI

    (School of Material and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, P. R. China)

  • YANWEN ZHOU

    (School of Material and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, P. R. China)

  • XIANG WANG

    (��CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P. R. China)

Abstract

A model for the relationship between the healing time of the scratched diamond-like carbon (DLC) film and the localized corrosion incubation period of metal was established. Based on model calculations combined with experimental results, the scratched DLC film on 13Cr stainless steel was able to heal within 10–16h in NaCl solution with an adsorbent-type corrosion inhibitor. However, the localized corrosion incubation time was 30–40h. Healing of the scratched DLC film can be completed before localized corrosion occurs. This model provides a theoretical reference for the scratch-repassivation of inert films in corrosion inhibitors solutions.

Suggested Citation

  • Minghan Zhao & Yi Ren & Dongxu Chen & Haodong Wu & Jing Li & Yanwen Zhou & Xiang Wang, 2025. "A Novel Model For The Relationship Between The Healing Time Of The Inert Film And The Incubation Period Of Localized Corrosion," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 32(03), pages 1-8, March.
    • Handle: RePEc:wsi:srlxxx:v:32:y:2025:i:03:n:s0218625x24501166
    DOI: 10.1142/S0218625X24501166
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