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Role of Grain Boundary in Stress Corrosion Cracking based upon Elastic-Plastic Fracture Machanics

Research Project

Project/Area Number 23560078
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionTohoku University

Principal Investigator

LU Zhanpeng  東北大学, 未来科学技術共同研究センター, 客員教授 (30419999)

Co-Investigator(Kenkyū-buntansha) SHOJI Tetsuo  東北大学, 未来科学技術共同研究センター, 教授 (80091700)
TAKEDA Yoichi  東北大学, 大学院工学研究科, 准教授 (40374970)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywords弾塑性 / 応力腐食割れ / 環境強度 / 結晶粒界 / 高温水 / き裂進展
Research Abstract

Stress corrosion cracking growth rates of Alloy 182 weld metals in T-S and T-L orientations in 288oC pure water with various dissolved oxygen and hydrogen concentrations were measured. High angle random boundaries are dominant in Alloy 182. Extensive inter-dendritic stress corrosion cracking paths on the side surfaces and fracture surfaces of both T-S and T-L orientation specimens. Crack growth rates of the T-S specimen are significantly higher than those of the T-L specimen. The crack growth path in the T-S orientation specimen is apparently perpendicular to the applied loading direction, which appears to be parallel to the loading direction in the T-L specimen. The crack growth rate decreased significantly with decreasing dissolved oxygen concentration.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (11 results)

All 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (8 results)

  • [Journal Article] Deterministic formulation of the effect of stress intensity factor on PWSCC of Ni-base alloys2013

    • Author(s)
      Z.P. Lu, T. Shoji, H. Xue, C.Y. Fu
    • Journal Title

      Pressure Vessel Technology

      Volume: 135 Issue: 2 Pages: 21402-21402

    • DOI

      10.1115/1.4007471

    • Related Report
      2013 Annual Research Report 2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization of microstructure, local deformation and microchemistry in Alloy 600 heat-affected zone and stress corrosion cracking in high temperature water2012

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji, Seiya Yamazaki, Kazuhiro Ogawa
    • Journal Title

      Corrosion Science

      Volume: Vol.58 Pages: 211-228

    • DOI

      10.1016/j.corsci.2012.01.029

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synergistic effects of local strain-hardening and dissolved oxygen on stress corrosion cracking of 316NG weld heat-affected zones in simulated BWR environments2012

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji, He Xue, Fanjiang Meng, Chaoyang Fu, Yoichi Takeda, Koji Negishi
    • Journal Title

      J. Nuclear Materials

      Volume: Vol.423 Issue: 1-3 Pages: 28-39

    • DOI

      10.1016/j.jnucmat.2011.12.030

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Effects of dendrite orientation and water chemistry on stress corrosion cracking path and kinetics of Alloy 182 weld metal in high-temperature water2013

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji
    • Organizer
      16th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors
    • Place of Presentation
      USA
    • Related Report
      2013 Final Research Report
  • [Presentation] Effects of Prior-deformation and Water Chemistry on Stress Corrosion Cracking of Austenitic Alloys In High Temperature Water2013

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji, Shuang Xia, Meiyi Yao, Bangxin Zhou
    • Organizer
      21th International Conference on Nuclear Engineering (ICONE21)
    • Place of Presentation
      China
    • Related Report
      2013 Final Research Report
  • [Presentation] Effects of Prior-deformation and Water Chemistry on Stress Corrosion Cracking of Austenitic Alloys in High Temperature Water2013

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji, Shuang Xia, Meiyi Yao, Bangxin Zhou
    • Organizer
      21th International Conference on Nuclear Engineering (ICONE21)
    • Place of Presentation
      Chengdu, Sichuan, China
    • Related Report
      2013 Annual Research Report
  • [Presentation] Effects of dendrite orientation and water chemistry on stress corrosion cracking path and kinetics of Alloy 182 weld metal in high-temperature water2013

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji
    • Organizer
      16th Inter. Conf. Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors
    • Place of Presentation
      Asheville, North Carolina, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Deformation Mode and Microstructure on Stress Corrosion Cracking Path and Kinetics in High Temperature Water Environments2011

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji, Seiya Yamazaki, Fanjiang Meng, Tichun Dan, Yoichi Takeda, Koji Negishi
    • Organizer
      15^<th> International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors
    • Place of Presentation
      USA
    • Related Report
      2013 Final Research Report
  • [Presentation] Mechanistic Formulation of PWSCC Growth Rates of Ni-Base Alloys and Weld Metals2011

    • Author(s)
      Zhanpeng Lu, Tetsuo Shoji, He Xue and Chaoyang Fu
    • Organizer
      ASME 2011 Pressure Vessels and Piping Conference
    • Place of Presentation
      USA
    • Related Report
      2013 Final Research Report
  • [Presentation] Mechanistic formulation of PWSCC growth rates of Ni-Base alloys and weld Metals. 2011 ASME Pressure Vessels and Piping Division Conference2011

    • Author(s)
      Z.P. Lu,et al.
    • Organizer
      2011 ASME Pressure Vessels and Piping Division Conference
    • Place of Presentation
      Baltimore, USA
    • Related Report
      2011 Research-status Report
  • [Presentation] Deformation mode and microstructure on stress corrosion cracking path and kinetics in high temperature water Environments,2011

    • Author(s)
      Z.P. Lu,et al
    • Organizer
      15th Int. Conf. Environ. Degradation of Materials in Nuclear Power Systems -Water Reactors
    • Place of Presentation
      Colorado, USA
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2019-07-29  

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