Effect of Electrochemical Potential on Stress Corrosion Cracking Susceptibility of EN 1.4301 (AISI 304) Austenitic Stainless Steels in Simulated Hot Black Liquor

Pekka Pohjanne, Mikko Vepsäläinen, Timo Saario (Corresponding Author), Konsta Sipilä, Jyrki Romu, Tapio Saukkonen, Hannu Hänninen, Mikko Heikkilä, Juha Koskiniemi, Carl-Gustav Berg, Martti Pulliainen, Isto Virtanen, Thomas Ohligschläger

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    Stress corrosion cracking (SCC) susceptibility of austenitic EN 1.4301 (AISI 304) stainless steel was studied as a function of electrode potential at T = 190°C in 15 g kg-1 NaOH + 150 g kg-1 Na2S containing caustic environment simulating heavy black liquors (HBL) of pulp industry. Severe cracking was detected at corrosion potential and at cathodic potential of -0.11 V vs. Mo/MoS2 reference electrode. On the other hand, at anodic potentials of +0.03 to +0.3 V vs. Mo/MoS2 no cracking was observed. Thus, SCC of EN 1.4301 steel can potentially be mitigated in HBL environment by applying anodic protection. At the corrosion potential selective dissolution of Fe and slight localized enrichment of Ni and Cr as well as Na, S and O was observed. At anodic potentials Fe was selectively dissolved and marked enrichment of both Ni and Cr as well as Na, S and O took place in the corrosion product. The simultaneous enrichment of Ni and Cr in the corrosion product film was concluded to be the precondition to prevent stress corrosion cracking.
    Original languageEnglish
    Pages (from-to)887-894
    JournalCorrosion
    Volume71
    Issue number7
    DOIs
    Publication statusPublished - 2015
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Stress corrosion cracking
    Austenitic stainless steel
    Corrosion
    Anodic protection
    Caustics
    Electrodes
    Paper and pulp industry
    Steel
    Stainless Steel
    Dissolution
    Stainless steel

    Keywords

    • austenitic stainless steel
    • stress corrosion cracking
    • selective dissolution
    • alkaline solution
    • sodium hydroxide
    • sodium sulfide

    Cite this

    Pohjanne, Pekka ; Vepsäläinen, Mikko ; Saario, Timo ; Sipilä, Konsta ; Romu, Jyrki ; Saukkonen, Tapio ; Hänninen, Hannu ; Heikkilä, Mikko ; Koskiniemi, Juha ; Berg, Carl-Gustav ; Pulliainen, Martti ; Virtanen, Isto ; Ohligschläger, Thomas. / Effect of Electrochemical Potential on Stress Corrosion Cracking Susceptibility of EN 1.4301 (AISI 304) Austenitic Stainless Steels in Simulated Hot Black Liquor. In: Corrosion. 2015 ; Vol. 71, No. 7. pp. 887-894.
    @article{390d89be43fc44a6a513a7d31ecce40c,
    title = "Effect of Electrochemical Potential on Stress Corrosion Cracking Susceptibility of EN 1.4301 (AISI 304) Austenitic Stainless Steels in Simulated Hot Black Liquor",
    abstract = "Stress corrosion cracking (SCC) susceptibility of austenitic EN 1.4301 (AISI 304) stainless steel was studied as a function of electrode potential at T = 190°C in 15 g kg-1 NaOH + 150 g kg-1 Na2S containing caustic environment simulating heavy black liquors (HBL) of pulp industry. Severe cracking was detected at corrosion potential and at cathodic potential of -0.11 V vs. Mo/MoS2 reference electrode. On the other hand, at anodic potentials of +0.03 to +0.3 V vs. Mo/MoS2 no cracking was observed. Thus, SCC of EN 1.4301 steel can potentially be mitigated in HBL environment by applying anodic protection. At the corrosion potential selective dissolution of Fe and slight localized enrichment of Ni and Cr as well as Na, S and O was observed. At anodic potentials Fe was selectively dissolved and marked enrichment of both Ni and Cr as well as Na, S and O took place in the corrosion product. The simultaneous enrichment of Ni and Cr in the corrosion product film was concluded to be the precondition to prevent stress corrosion cracking.",
    keywords = "austenitic stainless steel, stress corrosion cracking, selective dissolution, alkaline solution, sodium hydroxide, sodium sulfide",
    author = "Pekka Pohjanne and Mikko Veps{\"a}l{\"a}inen and Timo Saario and Konsta Sipil{\"a} and Jyrki Romu and Tapio Saukkonen and Hannu H{\"a}nninen and Mikko Heikkil{\"a} and Juha Koskiniemi and Carl-Gustav Berg and Martti Pulliainen and Isto Virtanen and Thomas Ohligschl{\"a}ger",
    year = "2015",
    doi = "10.5006/1594",
    language = "English",
    volume = "71",
    pages = "887--894",
    journal = "Corrosion",
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    }

    Effect of Electrochemical Potential on Stress Corrosion Cracking Susceptibility of EN 1.4301 (AISI 304) Austenitic Stainless Steels in Simulated Hot Black Liquor. / Pohjanne, Pekka; Vepsäläinen, Mikko; Saario, Timo (Corresponding Author); Sipilä, Konsta; Romu, Jyrki; Saukkonen, Tapio; Hänninen, Hannu; Heikkilä, Mikko; Koskiniemi, Juha; Berg, Carl-Gustav; Pulliainen, Martti; Virtanen, Isto; Ohligschläger, Thomas.

    In: Corrosion, Vol. 71, No. 7, 2015, p. 887-894.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Effect of Electrochemical Potential on Stress Corrosion Cracking Susceptibility of EN 1.4301 (AISI 304) Austenitic Stainless Steels in Simulated Hot Black Liquor

    AU - Pohjanne, Pekka

    AU - Vepsäläinen, Mikko

    AU - Saario, Timo

    AU - Sipilä, Konsta

    AU - Romu, Jyrki

    AU - Saukkonen, Tapio

    AU - Hänninen, Hannu

    AU - Heikkilä, Mikko

    AU - Koskiniemi, Juha

    AU - Berg, Carl-Gustav

    AU - Pulliainen, Martti

    AU - Virtanen, Isto

    AU - Ohligschläger, Thomas

    PY - 2015

    Y1 - 2015

    N2 - Stress corrosion cracking (SCC) susceptibility of austenitic EN 1.4301 (AISI 304) stainless steel was studied as a function of electrode potential at T = 190°C in 15 g kg-1 NaOH + 150 g kg-1 Na2S containing caustic environment simulating heavy black liquors (HBL) of pulp industry. Severe cracking was detected at corrosion potential and at cathodic potential of -0.11 V vs. Mo/MoS2 reference electrode. On the other hand, at anodic potentials of +0.03 to +0.3 V vs. Mo/MoS2 no cracking was observed. Thus, SCC of EN 1.4301 steel can potentially be mitigated in HBL environment by applying anodic protection. At the corrosion potential selective dissolution of Fe and slight localized enrichment of Ni and Cr as well as Na, S and O was observed. At anodic potentials Fe was selectively dissolved and marked enrichment of both Ni and Cr as well as Na, S and O took place in the corrosion product. The simultaneous enrichment of Ni and Cr in the corrosion product film was concluded to be the precondition to prevent stress corrosion cracking.

    AB - Stress corrosion cracking (SCC) susceptibility of austenitic EN 1.4301 (AISI 304) stainless steel was studied as a function of electrode potential at T = 190°C in 15 g kg-1 NaOH + 150 g kg-1 Na2S containing caustic environment simulating heavy black liquors (HBL) of pulp industry. Severe cracking was detected at corrosion potential and at cathodic potential of -0.11 V vs. Mo/MoS2 reference electrode. On the other hand, at anodic potentials of +0.03 to +0.3 V vs. Mo/MoS2 no cracking was observed. Thus, SCC of EN 1.4301 steel can potentially be mitigated in HBL environment by applying anodic protection. At the corrosion potential selective dissolution of Fe and slight localized enrichment of Ni and Cr as well as Na, S and O was observed. At anodic potentials Fe was selectively dissolved and marked enrichment of both Ni and Cr as well as Na, S and O took place in the corrosion product. The simultaneous enrichment of Ni and Cr in the corrosion product film was concluded to be the precondition to prevent stress corrosion cracking.

    KW - austenitic stainless steel

    KW - stress corrosion cracking

    KW - selective dissolution

    KW - alkaline solution

    KW - sodium hydroxide

    KW - sodium sulfide

    U2 - 10.5006/1594

    DO - 10.5006/1594

    M3 - Article

    VL - 71

    SP - 887

    EP - 894

    JO - Corrosion

    JF - Corrosion

    SN - 0010-9312

    IS - 7

    ER -