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A method to evaluate local hydrogen content near surface using an indentation test

Research Project

Project/Area Number 25820001
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Materials/Mechanics of materials
Research InstitutionTohoku University

Principal Investigator

TAKAKUWA OSAMU  東北大学, 工学(系)研究科(研究院), 助教 (60633518)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords水素脆化 / インデンテーション法 / ステンレス鋼 / 表面改質 / 圧子押込み試験
Outline of Final Research Achievements

In this study, we focused on hydrogen-induced hardening phenomenon so as to evaluate local hydrogen content and conducted an indentation test and thermal desorption analysis on austenitic stainless steel after being charged with hydrogen.
It was revealed that hydrogen-induced hardening rate increases along with increase in charging current density and charging time. Also, hydrogen content has a strong linear correlation with variation of indentation depth before and after being charged with hydrogen. The local hydrogen content can be evaluated by the relationship between hydrogen-induced hardening rate and hydrogen content.

Report

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

    (15 results)

All 2015 2014 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Acknowledgement Compliant: 5 results,  Open Access: 2 results) Presentation (8 results)

  • [Journal Article] Evaluation of hydrogen content in the surface layer of austenitic stainless steel by means of micro-indentation test with a spherical indenter2015

    • Author(s)
      眞野優太,髙桑脩,祖山 均
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 81 Issue: 823 Pages: 14-00426-14-00426

    • DOI

      10.1299/transjsme.14-00426

    • NAID

      130005130789

    • ISSN
      2187-9761
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Suppression of hydrogen invasion into austenitic stainless steel by means of cavitation peening2015

    • Author(s)
      髙桑 脩, 眞野 優太, 祖山 均
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 81 Issue: 824 Pages: 14-00638-14-00638

    • DOI

      10.1299/transjsme.14-00638

    • NAID

      130005066593

    • ISSN
      2187-9761
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Increase in the local yield stress near surface of austenitic stainless steel due to invasion by hydrogen2014

    • Author(s)
      O. Takakuwa, Y. Mano, H. Soyama
    • Journal Title

      International Journal of Hydrogen Energy

      Volume: 39 Issue: 11 Pages: 6095-6103

    • DOI

      10.1016/j.ijhydene.2014.01.190

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Hydrogen on the Micro- and Macro-Strain Near the Surface of Austenitic Stainless Steel2014

    • Author(s)
      O.Takakuwa, Y.Mano and H.Soyama
    • Journal Title

      Advanced Materials Research

      Volume: 936 Pages: 1298-1302

    • DOI

      10.4028/www.scientific.net/amr.936.1298

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Effect of Indentation Load on Vickers Hardness of Austenitic Stainless Steel after Hydrogen Charging2014

    • Author(s)
      Osamu TAKAKUWA, Yuta MANO and Hitoshi SOYAMA
    • Journal Title

      Proceedings of the ASME2014 Pressure Vessels & Piping Conference

      Volume: PVP2014-28280 Pages: 1-6

    • DOI

      10.1115/pvp2014-28280

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] The Interaction between Hydrogen and Surface Stress in Stainless Steel2014

    • Author(s)
      Osamu TAKAKUWA, Yuta MANO and Hitoshi SOYAMA
    • Journal Title

      Proceedings of the 12th International Conference on Material Science and Engineering Technology

      Volume: 8 Pages: 1285-1289

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Effect of Hydrogen on the Micro- and Macro-strain near the Surface of Austenitic Stainless Steel2014

    • Author(s)
      Osamu Takakuwa, Yuta Mano, Hitoshi Soyama
    • Journal Title

      Advanced Materials Research

      Volume: 印刷中

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 昇温脱離分析装置の試作と表面改質したステンレス鋼における水素侵入防止の実証2015

    • Author(s)
      眞野 優太,髙桑 脩,祖山 均
    • Organizer
      日本機械学会第50期総会・講演会
    • Place of Presentation
      東北大学 宮城県仙台市
    • Year and Date
      2015-03-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 応力測定によるステンレス鋼の局所的水素量評価法の提案2014

    • Author(s)
      髙桑 脩,藤沢 拓弥,祖山 均
    • Organizer
      日本機械学会東北支部第50期秋季講演会
    • Place of Presentation
      東北学院大学 宮城県多賀城市
    • Year and Date
      2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] ステンレス鋼の粒内・粒界における押し込み変形に及ぼす水素の影響2014

    • Author(s)
      眞野 優太,髙桑 脩,祖山 均
    • Organizer
      日本機械学会東北支部第50期秋季講演会
    • Place of Presentation
      東北学院大学 宮城県多賀城市
    • Year and Date
      2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] オーステナイト系ステンレス鋼の水素侵入に及ぼす表面応力の影響とその相互作用2014

    • Author(s)
      髙桑 脩,眞野 優太,祖山 均
    • Organizer
      日本機械学会M&M2014材料力学カンファレンス
    • Place of Presentation
      福島大学 福島県福島市
    • Year and Date
      2014-07-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] 微小圧子押込み試験によるオーステナイト系ステンレス鋼の局所的水素侵入評価2014

    • Author(s)
      眞野 優太,髙桑 脩,祖山 均
    • Organizer
      日本機械学会M&M2014材料力学カンファレンス
    • Place of Presentation
      福島大学 福島県福島市
    • Year and Date
      2014-07-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] ステンレス鋼表面層のマクロ歪およびミクロ歪に及ぼす水素の影響

    • Author(s)
      眞野 優太,高桑 脩,祖山 均
    • Organizer
      日本機械学会東北支部第49期秋季講演会
    • Place of Presentation
      岩手大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 水素添加後のオーステナイト系ステンレス鋼表面層のビッカース硬さに対する押込み荷重の影響

    • Author(s)
      高桑 脩,眞野 優太,祖山 均
    • Organizer
      日本機械学会M&M2013材料力学カンファレンス
    • Place of Presentation
      岐阜大学
    • Related Report
      2013 Research-status Report
  • [Presentation] ステンレス鋼への水素侵入に及ぼす表面仕上げの影響

    • Author(s)
      高桑 脩,眞野 優太,祖山 均
    • Organizer
      日本機械学会第49期総会・講演会
    • Place of Presentation
      東北大学
    • Related Report
      2013 Research-status Report

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

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