In situ monitoring of crevice corrosion morphology of Type 316L stainless steel and repassivation behavior induced by sulfate ions

Takahito Aoyama; Yu Sugawara; Izumi Muto; Nobuyoshi Hara

doi:10.1016/j.corsci.2017.08.005

In situ monitoring of crevice corrosion morphology of Type 316L stainless steel and repassivation behavior induced by sulfate ions

Takahito Aoyama, Yu Sugawara, Izumi Muto, Nobuyoshi Hara

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

To analyze the repassivation mechanism induced by SO₄²⁻ ions, in situ monitoring of the crevice corrosion morphology on Type 316L stainless steel was performed. The repassivation of the crevice corrosion was observed when the solution was changed from 1 M NaCl to 0.88 M Na₂SO₄ or to 1 M NaCl-0.88 M Na₂SO₄. The active dissolution of Type 316L stainless steel was suppressed by SO₄²⁻ ions at pH 0.4 in anodic polarization measurements. The transition from active to passive states inside the crevice was likely promoted by SO₄²⁻ ions.

Original language	English
Pages (from-to)	131-140
Number of pages	10
Journal	Corrosion Science
Volume	127
DOIs	https://doi.org/10.1016/j.corsci.2017.08.005
Publication status	Published - 2017 Oct

Keywords

Crevice corrosion
Potentiostatic
Repassivation
Stainless steel

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2017.08.005

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title = "In situ monitoring of crevice corrosion morphology of Type 316L stainless steel and repassivation behavior induced by sulfate ions",

abstract = "To analyze the repassivation mechanism induced by SO42− ions, in situ monitoring of the crevice corrosion morphology on Type 316L stainless steel was performed. The repassivation of the crevice corrosion was observed when the solution was changed from 1 M NaCl to 0.88 M Na2SO4 or to 1 M NaCl-0.88 M Na2SO4. The active dissolution of Type 316L stainless steel was suppressed by SO42− ions at pH 0.4 in anodic polarization measurements. The transition from active to passive states inside the crevice was likely promoted by SO42− ions.",

keywords = "Crevice corrosion, Potentiostatic, Repassivation, Stainless steel",

author = "Takahito Aoyama and Yu Sugawara and Izumi Muto and Nobuyoshi Hara",

note = "Funding Information: This work was partially supported by the Center of World Intelligence Project for Nuclear S&T and Human Resource Development by the Ministry of Education, Culture, Sports, Science and Technology of Japan. Y. Sugawara is grateful for the funding of his research by JSPS KAKENHI Grant Number JP15H05550 . Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = oct,

doi = "10.1016/j.corsci.2017.08.005",

language = "English",

volume = "127",

pages = "131--140",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - In situ monitoring of crevice corrosion morphology of Type 316L stainless steel and repassivation behavior induced by sulfate ions

AU - Aoyama, Takahito

AU - Sugawara, Yu

AU - Muto, Izumi

AU - Hara, Nobuyoshi

N1 - Funding Information: This work was partially supported by the Center of World Intelligence Project for Nuclear S&T and Human Resource Development by the Ministry of Education, Culture, Sports, Science and Technology of Japan. Y. Sugawara is grateful for the funding of his research by JSPS KAKENHI Grant Number JP15H05550 . Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017/10

Y1 - 2017/10

N2 - To analyze the repassivation mechanism induced by SO42− ions, in situ monitoring of the crevice corrosion morphology on Type 316L stainless steel was performed. The repassivation of the crevice corrosion was observed when the solution was changed from 1 M NaCl to 0.88 M Na2SO4 or to 1 M NaCl-0.88 M Na2SO4. The active dissolution of Type 316L stainless steel was suppressed by SO42− ions at pH 0.4 in anodic polarization measurements. The transition from active to passive states inside the crevice was likely promoted by SO42− ions.

AB - To analyze the repassivation mechanism induced by SO42− ions, in situ monitoring of the crevice corrosion morphology on Type 316L stainless steel was performed. The repassivation of the crevice corrosion was observed when the solution was changed from 1 M NaCl to 0.88 M Na2SO4 or to 1 M NaCl-0.88 M Na2SO4. The active dissolution of Type 316L stainless steel was suppressed by SO42− ions at pH 0.4 in anodic polarization measurements. The transition from active to passive states inside the crevice was likely promoted by SO42− ions.

KW - Crevice corrosion

KW - Potentiostatic

KW - Repassivation

KW - Stainless steel

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DO - 10.1016/j.corsci.2017.08.005

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AN - SCOPUS:85028335600

VL - 127

SP - 131

EP - 140

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

ER -

In situ monitoring of crevice corrosion morphology of Type 316L stainless steel and repassivation behavior induced by sulfate ions

Abstract

Keywords

ASJC Scopus subject areas

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