Field testing of stainless steels in paper machine environment

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    At the wet ends of paper machines and especially at splash zones, pitting and crevice corrosion of stainless steels caused by chloride (C[Symbol Not Transcribed]) and thiosulphate (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) ions is a common phenomenon. Chloride ions originate from wood floated in sea water, supplied water and chemicals added to the pulp mix. Mechanical pulp brightened with dithionite (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) is the main source of thiosulphate ions (f.1). Thiosulphate pitting is known to occur within a narrow voltage potential range (f.2) and molar ratio [Equation Not Transcribed] (f.3). The most sensitive region for thiosulphate pitting is in the potential range of 0 to -400 mV[Symbol Not Transcribed] (f.4) and molar ratios of 10 to 30 (f.3). To initiate thiosulphate pitting corrosion on type 316L stainless steel the molar ratio [C[Symbol Not Transcribed]]/[SO[Symbol Not Transcribed]] should be [Symbol Not Transcribed]1 (f.3).
    Original languageEnglish
    Pages (from-to)47-50
    Number of pages4
    JournalPulp and Paper Canada
    Volume100
    Issue number4
    Publication statusPublished - 1999
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Thiosulfates
    Stainless Steel
    Pitting
    Stainless steel
    Testing
    Ions
    Corrosion
    Chlorides
    Mechanical pulp
    Dithionite
    Water
    Pulp
    Wood
    Steel
    Symbol
    Electric potential

    Cite this

    @article{a25e9e36dff447549c02ba34c65d0114,
    title = "Field testing of stainless steels in paper machine environment",
    abstract = "At the wet ends of paper machines and especially at splash zones, pitting and crevice corrosion of stainless steels caused by chloride (C[Symbol Not Transcribed]) and thiosulphate (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) ions is a common phenomenon. Chloride ions originate from wood floated in sea water, supplied water and chemicals added to the pulp mix. Mechanical pulp brightened with dithionite (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) is the main source of thiosulphate ions (f.1). Thiosulphate pitting is known to occur within a narrow voltage potential range (f.2) and molar ratio [Equation Not Transcribed] (f.3). The most sensitive region for thiosulphate pitting is in the potential range of 0 to -400 mV[Symbol Not Transcribed] (f.4) and molar ratios of 10 to 30 (f.3). To initiate thiosulphate pitting corrosion on type 316L stainless steel the molar ratio [C[Symbol Not Transcribed]]/[SO[Symbol Not Transcribed]] should be [Symbol Not Transcribed]1 (f.3).",
    author = "Tarja Laitinen",
    year = "1999",
    language = "English",
    volume = "100",
    pages = "47--50",
    journal = "Pulp and Paper Canada",
    issn = "0316-4004",
    publisher = "Business Information Group",
    number = "4",

    }

    Field testing of stainless steels in paper machine environment. / Laitinen, Tarja.

    In: Pulp and Paper Canada, Vol. 100, No. 4, 1999, p. 47-50.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Field testing of stainless steels in paper machine environment

    AU - Laitinen, Tarja

    PY - 1999

    Y1 - 1999

    N2 - At the wet ends of paper machines and especially at splash zones, pitting and crevice corrosion of stainless steels caused by chloride (C[Symbol Not Transcribed]) and thiosulphate (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) ions is a common phenomenon. Chloride ions originate from wood floated in sea water, supplied water and chemicals added to the pulp mix. Mechanical pulp brightened with dithionite (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) is the main source of thiosulphate ions (f.1). Thiosulphate pitting is known to occur within a narrow voltage potential range (f.2) and molar ratio [Equation Not Transcribed] (f.3). The most sensitive region for thiosulphate pitting is in the potential range of 0 to -400 mV[Symbol Not Transcribed] (f.4) and molar ratios of 10 to 30 (f.3). To initiate thiosulphate pitting corrosion on type 316L stainless steel the molar ratio [C[Symbol Not Transcribed]]/[SO[Symbol Not Transcribed]] should be [Symbol Not Transcribed]1 (f.3).

    AB - At the wet ends of paper machines and especially at splash zones, pitting and crevice corrosion of stainless steels caused by chloride (C[Symbol Not Transcribed]) and thiosulphate (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) ions is a common phenomenon. Chloride ions originate from wood floated in sea water, supplied water and chemicals added to the pulp mix. Mechanical pulp brightened with dithionite (S[Symbol Not Transcribed]O[Symbol Not Transcribed]) is the main source of thiosulphate ions (f.1). Thiosulphate pitting is known to occur within a narrow voltage potential range (f.2) and molar ratio [Equation Not Transcribed] (f.3). The most sensitive region for thiosulphate pitting is in the potential range of 0 to -400 mV[Symbol Not Transcribed] (f.4) and molar ratios of 10 to 30 (f.3). To initiate thiosulphate pitting corrosion on type 316L stainless steel the molar ratio [C[Symbol Not Transcribed]]/[SO[Symbol Not Transcribed]] should be [Symbol Not Transcribed]1 (f.3).

    M3 - Article

    VL - 100

    SP - 47

    EP - 50

    JO - Pulp and Paper Canada

    JF - Pulp and Paper Canada

    SN - 0316-4004

    IS - 4

    ER -