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Establishment of SCC retardation model considered with potential aging degradation in low-carbon stainless steel welds

Research Project

Project/Area Number 22760070
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Materials/Mechanics of materials
Research InstitutionTohoku University

Principal Investigator

ABE Hiroshi  東北大学, 大学院・工学研究科, 助教 (30540695)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsステンレス鋼 / 溶接部 / 凝固モード / 応力腐食割れ / 熱時効 / スピノーダル分解 / δ-フェライト / 低温時効 / オーステナイト系ステンレス鋼 / 溶接金属 / δーフェライト
Research Abstract

Hardening rate of δ-ferrite in low-carbon austenitic stainless steel welds has been evaluated by thermal treatment at 310-410 oC. The hardening rate of that in boiling water reactor coolant temperature has been predicted based on the above results. Effect of aging on corrosion characteristics and stress corrosion cracking (SCC) behavior of welds have been evaluated by SCC experiments in high-temperature water. Crack growth rate in δ-ferrite has also been evaluated semi-quantitatively.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (15 results)

All 2012 2011 2010

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (12 results)

  • [Journal Article] Role of δ-ferrite in stress corrosion cracking retardation near fusion boundary of 316NG welds2012

    • Author(s)
      H. Abe, Y. Watanabe
    • Journal Title

      Journal of Nuclear Materials

      Volume: 424 Pages: 57-61

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of solidification mode and low-temperature aging on SCC behavior of type 316L SS welds in high-temperature water2011

    • Author(s)
      H. Abe, Y. Watanabe, T. Miyazaki
    • Journal Title

      Proceedings of 19^<th> International Conference on Nuclear Engineering, CD-ROM

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effects of solidification mode and low-temperature aging on SCC behavior of type 316L SS welds in high-temperature water2011

    • Author(s)
      Hiroshi Abe, Yutaka Watanabe, Takamichi Miyazaki
    • Journal Title

      Proceedings of 19th International Conference on Nuclear Engineering

      Volume: (CD-ROM)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 316系低炭素ステンレス鋼溶接金属のBWR炉水温度域における熱時効脆化の評価2012

    • Author(s)
      阿部博志、渡辺豊、寺尾俊彦
    • Organizer
      日本保全学会第9回学術講演会
    • Place of Presentation
      東京
    • Year and Date
      2012-07-26
    • Related Report
      2012 Final Research Report
  • [Presentation] オーステナイト系低炭素ステンレス鋼溶接金属のBWR温度域における熱時効脆化の評価2012

    • Author(s)
      寺尾俊彦、阿部博志、渡辺豊
    • Organizer
      日本機械学会第17回動力・エネルギー技術シンポジウム
    • Place of Presentation
      福岡市
    • Year and Date
      2012-06-21
    • Related Report
      2012 Final Research Report
  • [Presentation] オーステナイト系低炭素ステンレス鋼溶接金属のBWR温度域における熱時効脆化の評価2012

    • Author(s)
      寺尾 俊彦
    • Organizer
      日本機械学会 第17回動力・エネルギー技術シンポジウム
    • Place of Presentation
      九州大学 病院キャンパス・百年講堂
    • Related Report
      2012 Annual Research Report
  • [Presentation] 316系低炭素ステンレス鋼溶接金属のBWR炉水温度域における熱時効脆化の評価2012

    • Author(s)
      阿部 博志
    • Organizer
      日本保全学会 第9回学術講演会
    • Place of Presentation
      一橋大学 一橋講堂
    • Related Report
      2012 Annual Research Report
  • [Presentation] 316系低炭素ステンレス鋼溶接金属の低温時効硬化現象に関する研究2011

    • Author(s)
      寺尾俊彦、阿部博志、渡辺豊
    • Organizer
      原子力学会東北支部第35回研究発表会
    • Place of Presentation
      仙台市
    • Year and Date
      2011-12-09
    • Related Report
      2012 Final Research Report
  • [Presentation] 316系低炭素ステンレス鋼溶接金属の低温時効硬化現象に関する研究2011

    • Author(s)
      寺尾俊彦、阿部博志、渡辺豊
    • Organizer
      原子力学会東北支部第35回研究発表会
    • Place of Presentation
      東北大学大学院工学研究科総合研究棟大講義室2
    • Year and Date
      2011-12-09
    • Related Report
      2011 Annual Research Report
  • [Presentation] 316系低炭素ステンレス鋼溶接金属の低温時効硬化現象に関する研究2011

    • Author(s)
      寺尾俊彦、阿部博志、渡辺豊、宮崎孝道
    • Organizer
      第7回量子エネルギー工学フォーラム
    • Place of Presentation
      青森県六ヶ所村
    • Year and Date
      2011-08-23
    • Related Report
      2012 Final Research Report
  • [Presentation] 316系低炭素ステンレス鋼溶接金属の低温時効硬化現象に関する研究2011

    • Author(s)
      寺尾俊彦、阿部博志、渡辺豊、宮崎孝道
    • Organizer
      第7回量子エネルギー工学フォーラム
    • Place of Presentation
      六ヶ所村文化交流プラザ スワニー大会議室
    • Year and Date
      2011-08-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] SUS316L溶接金属中δ-フェライトの310℃および335℃におけるスピノーダル分解速度の評価2011

    • Author(s)
      寺尾俊彦、渡辺豊、阿部博志
    • Organizer
      日本機械学会東北学生会第41回学生員卒業研究発表講演会
    • Place of Presentation
      盛岡市
    • Year and Date
      2011-03-03
    • Related Report
      2012 Final Research Report
  • [Presentation] SUS316L溶接金属中δ-フェライトの310℃および335℃におけるスピノーダル分解速度の評価2011

    • Author(s)
      寺尾俊彦、渡辺豊、阿部博志
    • Organizer
      (社)機械学会東北学生会第41回学生員卒業研究発表講演会
    • Place of Presentation
      盛岡
    • Year and Date
      2011-03-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] Potential Importance of Microstructural Aspects for Better Understanding of SCC Behaviors in Stainless Steels2010

    • Author(s)
      Y. Watanabe, H. Abe
    • Organizer
      International Seminar on Maintenance Science and Technology for Nuclear Power Plant
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2010-11-03
    • Related Report
      2012 Final Research Report
  • [Presentation] Potential Importance of Microstructural Aspects for Better Understanding of SCC Behaviors in Stainless Steels2010

    • Author(s)
      Yutaka Watanabe, Hiroshi Abe
    • Organizer
      International Seminar on Maintenance Science and Technology for Nuclear Power Plant
    • Place of Presentation
      Sendai
    • Year and Date
      2010-11-03
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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