Corrosion Behavior of Carbon Steel Coated with Octadecylamine in the Secondary Circuit of a Pressurized Water Reactor

Essi Jäppinen, Tiina Ikäläinen, Sari Järvimäki, Timo Saario, Konsta Sipilä, Martin Bojinov (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    Corrosion and particle deposition in the secondary circuits of pressurized water reactors can be mitigated by alternative water chemistries featuring film-forming amines. In the present work, the corrosion of carbon steel in secondary side water with or without octadecylamine (ODA) is studied by in situ electrochemical impedance spectroscopy, combined with weight loss/gain measurements, scanning electron microscopy and glow-discharge optical emission spectroscopy. The impedance spectra are interpreted using the mixed-conduction model to extract kinetic parameters of oxide growth and metal dissolution through it. From the experimental results, it can be concluded that ODA addition reduces the corrosion rate of both fresh and pre-oxidized carbon steel in secondary circuit significantly by slowing down both interfacial reactions and transport through the oxide layer.
    Original languageEnglish
    Pages (from-to)6037–6046
    Number of pages10
    JournalJournal of Materials Engineering and Performance
    Volume26
    Issue number12
    Early online date2017
    DOIs
    Publication statusPublished - 2017
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Pressurized water reactors
    Oxides
    Carbon steel
    Gain measurement
    Corrosion
    Optical emission spectroscopy
    Water
    Networks (circuits)
    Glow discharges
    Surface chemistry
    Corrosion rate
    Electrochemical impedance spectroscopy
    Kinetic parameters
    Amines
    Dissolution
    Metals
    Scanning electron microscopy
    stearylamine

    Keywords

    • carbon steel
    • corrosion mechanism
    • octadecylamine
    • pressurized water reactor
    • secondary circuit

    Cite this

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    title = "Corrosion Behavior of Carbon Steel Coated with Octadecylamine in the Secondary Circuit of a Pressurized Water Reactor",
    abstract = "Corrosion and particle deposition in the secondary circuits of pressurized water reactors can be mitigated by alternative water chemistries featuring film-forming amines. In the present work, the corrosion of carbon steel in secondary side water with or without octadecylamine (ODA) is studied by in situ electrochemical impedance spectroscopy, combined with weight loss/gain measurements, scanning electron microscopy and glow-discharge optical emission spectroscopy. The impedance spectra are interpreted using the mixed-conduction model to extract kinetic parameters of oxide growth and metal dissolution through it. From the experimental results, it can be concluded that ODA addition reduces the corrosion rate of both fresh and pre-oxidized carbon steel in secondary circuit significantly by slowing down both interfacial reactions and transport through the oxide layer.",
    keywords = "carbon steel, corrosion mechanism, octadecylamine, pressurized water reactor, secondary circuit",
    author = "Essi J{\"a}ppinen and Tiina Ik{\"a}l{\"a}inen and Sari J{\"a}rvim{\"a}ki and Timo Saario and Konsta Sipil{\"a} and Martin Bojinov",
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    Corrosion Behavior of Carbon Steel Coated with Octadecylamine in the Secondary Circuit of a Pressurized Water Reactor. / Jäppinen, Essi; Ikäläinen, Tiina; Järvimäki, Sari; Saario, Timo; Sipilä, Konsta; Bojinov, Martin (Corresponding Author).

    In: Journal of Materials Engineering and Performance, Vol. 26, No. 12, 2017, p. 6037–6046.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Jäppinen, Essi

    AU - Ikäläinen, Tiina

    AU - Järvimäki, Sari

    AU - Saario, Timo

    AU - Sipilä, Konsta

    AU - Bojinov, Martin

    N1 - Project code: 114798

    PY - 2017

    Y1 - 2017

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    AB - Corrosion and particle deposition in the secondary circuits of pressurized water reactors can be mitigated by alternative water chemistries featuring film-forming amines. In the present work, the corrosion of carbon steel in secondary side water with or without octadecylamine (ODA) is studied by in situ electrochemical impedance spectroscopy, combined with weight loss/gain measurements, scanning electron microscopy and glow-discharge optical emission spectroscopy. The impedance spectra are interpreted using the mixed-conduction model to extract kinetic parameters of oxide growth and metal dissolution through it. From the experimental results, it can be concluded that ODA addition reduces the corrosion rate of both fresh and pre-oxidized carbon steel in secondary circuit significantly by slowing down both interfacial reactions and transport through the oxide layer.

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    KW - corrosion mechanism

    KW - octadecylamine

    KW - pressurized water reactor

    KW - secondary circuit

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