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A Microelectrochemical Approach to Understanding Hydrogen Absorption into Steels and Prevention Technique against Hydrogen Embrittlement by Surface Modification

Research Project

Project/Area Number 25630319
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Material processing/Microstructural control engineering
Research InstitutionTohoku University

Principal Investigator

MUTO Izumi  東北大学, 工学(系)研究科(研究院), 教授 (20400278)

Co-Investigator(Kenkyū-buntansha) SUGAWARA Yu  東北大学, 大学院工学研究科, 助教 (40599057)
HARA Nobuyoshi  東北大学, 大学院工学研究科, 教授 (40111257)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords材料加工・処理 / 腐食防食 / 水素侵入 / 浸炭 / 介在物
Outline of Final Research Achievements

A small Devanathan-Stachurski cell was newly designed to ascertain the hydrogen absorption behavior into steels during corrosion. On a small area with MnS inclusions, the current of hydrogen permeation increased sharply when the NaCl solution was placed on the steel surface. On the other hand, no permeation current was observed on the area without the inclusions. MnS inclusions were likely to accelerate the steel dissolution and the hydrogen adsorption into the steel.
Type 304 stainless steel was subjected to low-temperature carburizing treatment to add excess interstitial carbon to its surface. No pitting was initiated on the carburized steel in NaClsolutions. It was clarified that the carburizing treatment inhibits the active dissolution rate of the steel matrix to about one hundredth. The carburization treatment was likely to suppress the hydrogen adsorption into the steels.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (12 results)

All 2015 2014

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 2 results,  Open Access: 1 results) Presentation (8 results) (of which Invited: 3 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Microelectrochemical Aspects of Interstitial Carbon in Type 304 Stainless Steel: Improving Pitting Resistance at MnS Inclusion2015

    • Author(s)
      Aya Chiba, Shuhei Shibukawa, Izumi Muto, Takashi Doi, Kaori Kawano, Yu Sugawara, and Nobuyoshi Hara
    • Journal Title

      Journal of the Electrochemical Society

      Volume: 162 Issue: 6 Pages: C270-C278

    • DOI

      10.1149/2.0851506jes

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Microelectrochemistry of Sulfide Inclusions and Pit Initiation Mechanisms of Stainless Steels2015

    • Author(s)
      千葉 亜耶、武藤 泉、菅原 優、原 信義
    • Journal Title

      Hyomen Kagaku

      Volume: 36 Issue: 1 Pages: 18-23

    • DOI

      10.1380/jsssj.36.18

    • NAID

      130004785071

    • ISSN
      0388-5321, 1881-4743
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of Corrosion and Cracking of Sulfide Inclusions on Pit Initiation in Stainless Steel2014

    • Author(s)
      Naoya Shimahashi, Izumi Muto, Yu Sugawara, and Nobuyoshi Hara
    • Journal Title

      Journal of the Electrochemical Society

      Volume: 161 Issue: 10 Pages: C494-C500

    • DOI

      10.1149/2.0831410jes

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 低温浸炭処理によるMnS介在物起点のステンレス鋼の耐孔食性改善2015

    • Author(s)
      千葉 亜耶, 渋川 周平, 武藤 泉, 土井教史, 河野佳織, 菅原 優, 原 信義
    • Organizer
      (一社)日本鉄鋼協会 第169回春季講演大会
    • Place of Presentation
      東京大学駒場キャンパス(東京都目黒区)
    • Year and Date
      2015-03-18 – 2015-03-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] 孔食の発生過程2015

    • Author(s)
      武藤 泉
    • Organizer
      (公社)日本材料学会 腐食防食部門委員会 第302回例会
    • Place of Presentation
      大阪科学技術センター(大阪市)
    • Year and Date
      2015-01-30
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] マイクロ電気化学システムによるステンレス鋼の孔食発生機構の解析2015

    • Author(s)
      武藤 泉
    • Organizer
      (公社)日本金属学会東北支部講演会
    • Place of Presentation
      八戸工業高等専門学校(八戸市)
    • Year and Date
      2015-01-16
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] ステンレス鋼中のMnS 介在物起点の孔食発生に及ぼす固溶炭素の影響2014

    • Author(s)
      千葉亜耶, 渋川周平, 武藤 泉, 土井教史, 河野佳織, 菅原 優, 原 信義
    • Organizer
      第61回材料と環境討論会((公社)腐食防食学会)
    • Place of Presentation
      米子市ビッグシップ(米子市)
    • Year and Date
      2014-11-26 – 2014-11-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] Microelectrochemical Properties of Ti(C,N) Inclusion of high strength martensitic carbon steel2014

    • Author(s)
      Yuta Watanabe, Izumi Muto, Tomohiko Omura, Yu Sugawara, Nobuyoshi Hara
    • Organizer
      226th Meeting of The Electrochemical Society
    • Place of Presentation
      Cancun , Mexico
    • Year and Date
      2014-10-05 – 2014-10-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] マイクロ電気化学システムによる鋼材への水素侵入挙動の計測2014

    • Author(s)
      武藤 泉、菅原 優、原 信義
    • Organizer
      (一社)日本鉄鋼協会シンポジウム「革新的水素不働態表面構築に向けてIII」
    • Place of Presentation
      名古屋大学 東山キャンパス(名古屋市)
    • Year and Date
      2014-09-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 弱酸性環境における炭窒化物系Ti(C,N)のマイクロ電極化学特性2014

    • Author(s)
      渡辺雄太、原 信義、武藤 泉、菅原 優、大村朋彦
    • Organizer
      (一社)日本鉄鋼協会 第168回秋季講演大会
    • Place of Presentation
      名古屋大学 東山キャンパス(名古屋市)
    • Year and Date
      2014-09-24 – 2014-09-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] ステンレス鋼の孔食発生過程のその場観察2014

    • Author(s)
      武藤 泉
    • Organizer
      第136回特殊鋼部会((一社)日本鉄鋼協会生産技術部門 主催)
    • Place of Presentation
      オークラ千葉ホテル(千葉市)
    • Year and Date
      2014-06-26 – 2014-06-27
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Patent(Industrial Property Rights)] 局部電気化学現象解析のための微小作用電極2015

    • Inventor(s)
      千葉亜耶、武藤 泉、菅原 優、原 信義
    • Industrial Property Rights Holder
      千葉亜耶、武藤 泉、菅原 優、原 信義
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2015-054864
    • Filing Date
      2015-03-27
    • Related Report
      2014 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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