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2013 Fiscal Year Final Research Report

Life Evaluation of Heat Resistant Steels with a Tempered Martensite Structure

Research Project

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Project/Area Number 23360296
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

MARUYAMA Kouichi  東北大学, 工学(系)研究科(研究院), 名誉教授 (90108465)

Co-Investigator(Kenkyū-buntansha) NAKAMURA Junya  東北大学, 大学院・工学研究科, 助教 (60613031)
Project Period (FY) 2011-04-01 – 2014-03-31
Keywords耐熱材料 / 高クロム鋼 / クリープ変形 / クリープ破壊 / 組織劣化 / 損傷 / 寿命評価 / 長寿命化
Research Abstract

Long-term creep life is estimated by time-temperature-parameter (TTP) methods. Such TTP methods overestimate creep life of creep strength enhanced ferritic (CSEF) steels. Decrease in activation energy Q for creep life in long-term creep of the steel is shown to be the cause of the overestimation. Creep life data of CSEF steel are divided into several data sets so that Q is unique in each divided data set, and then analyzed by a TTP method for creep life estimation. It has been proved that this multi-region analysis can properly estimate long-term creep lives. In creep of CSEF steels, recovery process of dislocation substructure is different between short-term and lon-term creep. This change in damage processes is the major cause of the decrease in Q value in long term-creep.

  • Research Products

    (21 results)

All 2014 2013 2012 2011

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (10 results)

  • [Journal Article] 高クロムフェライト鋼のクリープ破断時間における温度依存性の変化2014

    • Author(s)
      丸山公一, 中村純也, 吉見享祐
    • Journal Title

      鉄と鋼

      Volume: 100 Pages: 414-420

    • DOI

      10.2355/tetsutohagane.100.414

    • Peer Reviewed
  • [Journal Article] Thermal vacancy behavior analysis through thermal expansion, lattice parameter, and elastic modulus measurements of B2-type FeAl2014

    • Author(s)
      Mi Zhao, Kyosuke Yoshimi, Kouichi Maruyama, Kunio Yubuta
    • Journal Title

      Acta Materialia

      Volume: 64 Pages: 382-390

    • DOI

      10.1016/j.actamat.2013.10.051

    • Peer Reviewed
  • [Journal Article] A Comparison of Microstructural Strengthening for Thermal Creep and Radiation Damage Resistance of Titanium Aluminide Alloys2013

    • Author(s)
      H. Zhu, T. Wei, D. Carr, R. Harrison, L. Edwards, D. Seo, K. Maruyama
    • Journal Title

      J. Nuclear Materials

      Volume: 438 Pages: 190-192

    • DOI

      10.1016/j.jnucmat.2013.03.020

    • Peer Reviewed
  • [Journal Article] Effect of solute atoms on thermal fatigue properties in ferritic stainless steels2013

    • Author(s)
      Hiroki Ota, Tetsuyuki Nakamura, Kouichi Maruyama
    • Journal Title

      Materials Science Engineering A

      Volume: 586 Pages: 133-141

    • DOI

      10.1016/j.msea.2013.08.007

    • Peer Reviewed
  • [Journal Article] Contribution of recovery mechanisms of microstructure during long-term creep of Gr.91 steels2013

    • Author(s)
      H. Ghassemi-Armaki, R.P. Chen, K. Maruyama, M. Igarashi
    • Journal Title

      J. of Nuclear Materials

      Volume: 433 Pages: 23-29

    • DOI

      10.1016/j.jnucmat.2012.09.026

    • Peer Reviewed
  • [Journal Article] Strain-induced Coarsening of Nanoscale Precipitates in Strength Enhanced High Cr Ferritic Steels2012

    • Author(s)
      Hassan Ghassemi Armaki, Ruiping Chen, S. Kano, Kouichi Maruyama, Yasushi Hasegawa, Masaaki Igarashi
    • Journal Title

      Materials Science and Engineering A

      Volume: 532 Pages: 373-380

    • DOI

      10.1016/j.msea.2011.10.105

    • Peer Reviewed
  • [Journal Article] Long-term microstructural degradation and creep strength in Gr.91 steel2011

    • Author(s)
      R.P. Chen, H. Ghassemi Armaki, K. Maruyama, M. Igarashi
    • Journal Title

      Materials Science and Engineering A

      Volume: Vol.528 Pages: 4390-4394

    • DOI

      10.1016/j.msea.2011.02.060

    • Peer Reviewed
  • [Journal Article] Creep Behavior and Degradation of Subgrain Structures Pinned by Nanoscale Precipitates in Strength-Enhanced 5 to 12 Pct Cr Ferritic Steels2011

    • Author(s)
      Hassan Ghassemi Armaki, Ruiping Chen, Kouichi Maruyama, Masaaki Igarashi
    • Journal Title

      Metallurgical and Materials Transactions A

      Volume: Vol.42 Pages: 3084-3094

    • DOI

      10.1007/s11661-011-0726-8

    • Peer Reviewed
  • [Journal Article] Microstructural degradation mechanisms during creep in strength enhance high Cr ferritic steels and their evaluation by hardness measurement2011

    • Author(s)
      Hassan Ghassemi Armaki, Ruiping Chen, Satoshi Kano, Kouichi Maruyama, Yasushi Hasegawa, Masaaki Igarashi
    • Journal Title

      Journal of Nuclear Materials

      Volume: 416 Pages: 273-279

    • DOI

      10.1016/j.jnucmat.2011.06.007

    • Peer Reviewed
  • [Journal Article] Development of Oxide Dispersion Strengthened Steels for High Temperature Nuclear Structural Applications2011

    • Author(s)
      H. Zhu, T. Wei, R. Harrison, L. Edwards, K. Maruyama, J. Mathew, L. Ma, A. Tan, M. Weijnen and J. Lee
    • Journal Title

      Engineering Asset Management and Infrastructure Sustainability

      Pages: 1147-1160

    • Peer Reviewed
  • [Journal Article] Microstructural Degradation during High Temperature Exposure up to 10^5 h and its Effects on Creep of Gr. 91 Steel, Advances in Materials Technology for Fossil Power Plants2011

    • Author(s)
      R.P. Chen, H. Ghassemi Armaki, K. Maruyama, Y. Minami, M. Igarashi
    • Journal Title

      ASM International, Materials Park, OH, USA

      Pages: 654-666

    • Peer Reviewed
  • [Presentation] Prediction of Long-term Creep Rupture Life of Grade 122 Steel by Multi-region Analysis2014

    • Author(s)
      Kouichi Maruyama, Junya Nakamura, Kyosuke Yoshimi
    • Organizer
      ASME Symposium on Elevated Temperature Application of Materials for Fossil, Nuclear, and Petrochemical Industries
    • Place of Presentation
      ルネッサンスホテル, Seattle, USA
    • Year and Date
      20140325-27
  • [Presentation] 先進高Cr フェライト鋼のクリープ破断寿命における温度依存性の変化2014

    • Author(s)
      丸山公一, 中村純也, 吉見享祐
    • Organizer
      日本鉄鋼協会
    • Place of Presentation
      東京工業大学, 東京都
    • Year and Date
      20140321-23
  • [Presentation] Evaluation of Long-term Creep Rupture Life of Strength Enhanced High Cr Ferritic Steel on the Basis of its Temperature Dependence2013

    • Author(s)
      Kouichi Maruyama, Junya Nakamura, Kyosuke Yoshimi
    • Organizer
      7th International Conference on Advances in Materials Technology for Fossil Power Plants
    • Place of Presentation
      ヒルトンホテル, Waikoloa, HI, USA
    • Year and Date
      20131022-25
  • [Presentation] クリープ機構の遷移と加速試験条件2013

    • Author(s)
      丸山公一
    • Organizer
      日本金属協会
    • Place of Presentation
      金沢大学, 金沢市
    • Year and Date
      20130917-19
  • [Presentation] 火力発電高効率化に向けた高温材料の課題2013

    • Author(s)
      丸山公一
    • Organizer
      日本鉄鋼協会
    • Place of Presentation
      金沢大学, 金沢市
    • Year and Date
      20130917-19
  • [Presentation] 高Cr フェライト鋼のクリープ損傷プロセスとその高温長時間使用による遷移2013

    • Author(s)
      丸山公一
    • Organizer
      日本金属学会
    • Place of Presentation
      東京理科大学, 東京都
    • Year and Date
      20130327-29
  • [Presentation] Methodology of Creep Life Evaluation for Strength Enhanced High Cr Ferritic Steel2012

    • Author(s)
      K. Maruyama, J. Nakamura, K. Yoshimi
    • Organizer
      Energy Materials-High Temperature Materials Conference
    • Place of Presentation
      Loughborough University, Loughborough, UK
    • Year and Date
      20121018-19
  • [Presentation] Modeling of Microstructural Degradation during Long-term High-Temperature Creep of Strength Enhanced High Cr Ferritic Steel2012

    • Author(s)
      K. Maruyama, R.P. Chen, J. Nakamura, M. Igarashi
    • Organizer
      IUTAM Symposium on Advanced Materials Modelling for Structures
    • Place of Presentation
      Ecole de Mines, Paris, France
    • Year and Date
      20120423-27
  • [Presentation] 先進高Cr鋼でのクリープ損傷機構の遷移2012

    • Author(s)
      丸山公一
    • Organizer
      日本鉄鋼協会
    • Place of Presentation
      横浜国立大学, 横浜市
    • Year and Date
      20120328-30
  • [Presentation] Microstructural Damage Mechanism during Long-term Creep of Strength Enhanced High Cr Ferritic Steel, Fatigue and Creep-fatigue Interaction2012

    • Author(s)
      K. Maruyama, R.P. Chen, J. Nakamura, M. Igarashi
    • Organizer
      The 6th International Conference on Creep
    • Place of Presentation
      ラディソンホテル, Mamallapuram, India
    • Year and Date
      20120122-25

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Published: 2015-06-25  

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