Role of MnS in the intergranular corrosion and depassivation of sensitized Type 304 stainless steel

被引：6
作者：
Ida, Noriyuki [1 ,2 ]
Nishimoto, Masashi [1 ]
Muto, Izumi [1 ]
Sugawara, Yu [1 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, 6-6-02,Aza AobamAoba-ku, Sendai 9808579, Japan
[2] Cent Res Inst Elect Power Ind, 2-6-1 Nagasaka, Nagasaka, Yokosuka 2400196, Japan
来源：
NPJ MATERIALS DEGRADATION | 2024年 / 8卷 / 01期
基金：
日本学术振兴会;
关键词：
DUPLEX STAINLESS-STEEL; SINGLE SULFIDE INCLUSIONS; PIT INITIATION; CREVICE CORROSION; PITTING CORROSION; RESISTANCE; SULFUR; PH; MICROSTRUCTURE; VISUALIZATION;
D O I：
10.1038/s41529-023-00419-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
During polarization in 1 M NaCl (pH 5.4), intergranular corrosion of sensitized re-sulfurized Type 304 stainless steel occurred after pit initiation at MnS inclusions. Intergranular corrosion occurred when the pitting corrosion reached a Cr-depleted region along the sensitized grain boundaries. During depassivation under open-circuit conditions in 1 M NaCl (pH 1.0), MnS dissolution occurred as the first step, and the second step was the initiation of intergranular corrosion. Finally, dissolution of the steel matrix occurred. The role of MnS in the initiation of intergranular corrosion and depassivation of sensitized steel is discussed.
引用
收藏
页数：11
相关论文
共 53 条
  • [1] Effect of Some Environmental and Stainless Steel Metallurgical Variables on the Values of Degree of Sensitization Measured by the Double Loop-Electrochemical Potentiokinetic Reactivation Test
    Altamirano, Pablo M.
    Kappes, Mariano A.
    Rodriguez, Martin A.
    [J]. CORROSION, 2022, 78 (11) : 1067 - 1078
  • [2] Micro-electrochemical insights into pit initiation site on aged UNS S32750 super duplex stainless steel
    Amatsuka, Shuichiro
    Nishimoto, Masashi
    Muto, Izumi
    Kawamori, Makoto
    Takara, Yuya
    Sugawara, Yu
    [J]. NPJ MATERIALS DEGRADATION, 2023, 7 (01)
  • [3] MICROTECHNIQUES AND NANOTECHNIQUES TO STUDY LOCALIZED CORROSION
    BOHNI, H
    SUTER, T
    SCHREYER, A
    [J]. ELECTROCHIMICA ACTA, 1995, 40 (10) : 1361 - 1368
  • [4] Occluded solution chemistry control and the role of alloy sulfur on the initiation of crevice corrosion in type 304ss
    Brossia, CS
    Kelly, RG
    [J]. CORROSION SCIENCE, 1998, 40 (11) : 1851 - 1871
  • [5] STUDIES BY AUGER-SPECTROSCOPY OF PIT INITIATION AT THE SITE OF INCLUSIONS IN STAINLESS-STEEL
    CASTLE, JE
    KE, R
    [J]. CORROSION SCIENCE, 1990, 30 (4-5) : 409 - 428
  • [6] The ferritic stainless family: the appropriate answer to nickel volatility?
    Charles, J.
    Mithieux, J. -D.
    Santacreu, P. -O.
    Peguet, L.
    [J]. REVUE DE METALLURGIE-CAHIERS D INFORMATIONS TECHNIQUES, 2009, 106 (03): : 124 - 139
  • [7] Pit Initiation Mechanism at MnS Inclusions in Stainless Steel: Synergistic Effect of Elemental Sulfur and Chloride Ions
    Chiba, Aya
    Muto, Izumi
    Sugawara, Yu
    Hara, Nobuyoshi
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2013, 160 (10) : C511 - C520
  • [8] A Microelectrochemical System for In Situ High-Resolution Optical Microscopy: Morphological Characteristics of Pitting at MnS Inclusion in Stainless Steel
    Chiba, Aya
    Muto, Izumi
    Sugawara, Yu
    Hara, Nobuyoshi
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (08) : C341 - C350
  • [9] CROLET JL, 1975, REV METALL-PARIS, V72, P937
  • [10] INITIATION OF PITTING AT SULFIDE INCLUSIONS IN STAINLESS-STEEL
    EKLUND, GS
    [J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1974, 121 (04) : 467 - 473
123456