Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions

    Research output: Book/ReportReportProfessional

    Abstract

    Octadecylamine (ODA) is a film forming amine (FFA) that can be used in the secondary side water of pressurized water reactor (PWR) to hinder magnetite depositions and corrosion rates. The effect of ODA on the corrosion rates of carbon steel in PWR secondary side water treated with NH3 was studied as a function of temperature by using in situ and ex situ techniques. As a result, following conclusions can be made: 1. Addition of ODA to the secondary side water treated with NH3 decreases corrosion rate of the studied carbon steel (22K) at T = 228°C by a factor of 3. 2. ODA addition has the same effect on the corrosion rate whether it has been added at the beginning of the exposure (fresh surface) or after a period of pre-oxidation of the carbon steel surface during which a stable magnetite film was grown. This indicates that ODA would effectively slow down also the corrosion of carbon steel at locations where flow assisted corrosion (FAC) takes place. 3. The effect of ODA on the corrosion rates of studied carbon steel seems to diminish as temperature is decreased from 228°C to room temperature.
    Original languageEnglish
    PublisherVTT Technical Research Centre of Finland
    Number of pages116
    Publication statusPublished - 2014
    MoE publication typeD4 Published development or research report or study

    Publication series

    NameResearch Report
    PublisherVTT
    No.VTT-R-06077-14

    Fingerprint

    Steel corrosion
    Pressurized water reactors
    Carbon steel
    Corrosion rate
    Ferrosoferric Oxide
    Water
    Corrosion
    Deposition rates
    Temperature
    Amines
    stearylamine
    Oxidation

    Keywords

    • PWR
    • secondary side
    • film forming amine
    • carbon steel
    • corrosion

    Cite this

    Sipilä, K., & Saario, T. (2014). Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions. VTT Technical Research Centre of Finland. VTT Research Report, No. VTT-R-06077-14
    Sipilä, Konsta ; Saario, Timo. / Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions. VTT Technical Research Centre of Finland, 2014. 116 p. (VTT Research Report; No. VTT-R-06077-14).
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    abstract = "Octadecylamine (ODA) is a film forming amine (FFA) that can be used in the secondary side water of pressurized water reactor (PWR) to hinder magnetite depositions and corrosion rates. The effect of ODA on the corrosion rates of carbon steel in PWR secondary side water treated with NH3 was studied as a function of temperature by using in situ and ex situ techniques. As a result, following conclusions can be made: 1. Addition of ODA to the secondary side water treated with NH3 decreases corrosion rate of the studied carbon steel (22K) at T = 228°C by a factor of 3. 2. ODA addition has the same effect on the corrosion rate whether it has been added at the beginning of the exposure (fresh surface) or after a period of pre-oxidation of the carbon steel surface during which a stable magnetite film was grown. This indicates that ODA would effectively slow down also the corrosion of carbon steel at locations where flow assisted corrosion (FAC) takes place. 3. The effect of ODA on the corrosion rates of studied carbon steel seems to diminish as temperature is decreased from 228°C to room temperature.",
    keywords = "PWR, secondary side, film forming amine, carbon steel, corrosion",
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    Sipilä, K & Saario, T 2014, Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions. VTT Research Report, no. VTT-R-06077-14, VTT Technical Research Centre of Finland.

    Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions. / Sipilä, Konsta; Saario, Timo.

    VTT Technical Research Centre of Finland, 2014. 116 p. (VTT Research Report; No. VTT-R-06077-14).

    Research output: Book/ReportReportProfessional

    TY - BOOK

    T1 - Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions

    AU - Sipilä, Konsta

    AU - Saario, Timo

    N1 - Project code: 85630

    PY - 2014

    Y1 - 2014

    N2 - Octadecylamine (ODA) is a film forming amine (FFA) that can be used in the secondary side water of pressurized water reactor (PWR) to hinder magnetite depositions and corrosion rates. The effect of ODA on the corrosion rates of carbon steel in PWR secondary side water treated with NH3 was studied as a function of temperature by using in situ and ex situ techniques. As a result, following conclusions can be made: 1. Addition of ODA to the secondary side water treated with NH3 decreases corrosion rate of the studied carbon steel (22K) at T = 228°C by a factor of 3. 2. ODA addition has the same effect on the corrosion rate whether it has been added at the beginning of the exposure (fresh surface) or after a period of pre-oxidation of the carbon steel surface during which a stable magnetite film was grown. This indicates that ODA would effectively slow down also the corrosion of carbon steel at locations where flow assisted corrosion (FAC) takes place. 3. The effect of ODA on the corrosion rates of studied carbon steel seems to diminish as temperature is decreased from 228°C to room temperature.

    AB - Octadecylamine (ODA) is a film forming amine (FFA) that can be used in the secondary side water of pressurized water reactor (PWR) to hinder magnetite depositions and corrosion rates. The effect of ODA on the corrosion rates of carbon steel in PWR secondary side water treated with NH3 was studied as a function of temperature by using in situ and ex situ techniques. As a result, following conclusions can be made: 1. Addition of ODA to the secondary side water treated with NH3 decreases corrosion rate of the studied carbon steel (22K) at T = 228°C by a factor of 3. 2. ODA addition has the same effect on the corrosion rate whether it has been added at the beginning of the exposure (fresh surface) or after a period of pre-oxidation of the carbon steel surface during which a stable magnetite film was grown. This indicates that ODA would effectively slow down also the corrosion of carbon steel at locations where flow assisted corrosion (FAC) takes place. 3. The effect of ODA on the corrosion rates of studied carbon steel seems to diminish as temperature is decreased from 228°C to room temperature.

    KW - PWR

    KW - secondary side

    KW - film forming amine

    KW - carbon steel

    KW - corrosion

    M3 - Report

    T3 - Research Report

    BT - Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions

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    ER -

    Sipilä K, Saario T. Effect of octadecylamine on carbon steel corrosion under PWR secondary side conditions. VTT Technical Research Centre of Finland, 2014. 116 p. (VTT Research Report; No. VTT-R-06077-14).