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Effect of off-stoichiometriy on physical and mechanical properties of Mo5SiB2

Research Project

Project/Area Number 15K18229
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Structural/Functional materials
Research InstitutionTohoku University

Principal Investigator

Nakamura Junya  東北大学, 工学研究科, 助教 (60613031)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords超高温材料 / マイクロピラー / 弾性率 / 非化学量論性
Outline of Final Research Achievements

In this study, the single-crystal micropillar was prepared by Mo5SiB2 (T2) phase in Mo-Si-B three phase alloys. The effect of off-stoichiometry on the deformation and fracture behavior of T2 at room temperature was studied by micro-compression tests.
Elastic moduli of each constitution phases of the Mo-Si-B alloys were estimated by using the macroscopic elastic constant, volume fraction of each constitution phases and the rule of mixtures. The effect of the off-stoichiometry on elastic moduli of T2 phase were investigated.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (20 results)

All 2017 2016 2015

All Journal Article (7 results) (of which Peer Reviewed: 5 results,  Open Access: 4 results,  Acknowledgement Compliant: 2 results) Presentation (13 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results)

  • [Journal Article] Room-temperature fracture toughness of MoSiBTiC alloys2017

    • Author(s)
      Takahiro Moriyama, Kyosuke Yoshimi, Mi Zhao, Tiffany Masnou, Tomohiro Yokoyama, Junya Nakamura, Hirokazu Katsui, Takashi Goto
    • Journal Title

      Intermetallics

      Volume: 84 Pages: 92-102

    • DOI

      10.1016/j.intermet.2017.01.004

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 電磁超音波共鳴法を用いたMo-Si-B合金の弾性率測定2017

    • Author(s)
      中村純也,関戸信彰,吉見享祐
    • Journal Title

      日本学術振興会耐熱金属材料第123委員会研究報告

      Volume: 58 Pages: 95-104

    • Related Report
      2016 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] Gr.91鋼におけるヒート間のクリープ強度差の原因2017

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

      日本学術振興会耐熱金属材料第123委員会研究報告

      Volume: 58 Pages: 9-22

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Effect of B2-ordered phase on the deformation behavior of Ti-Mo-Al alloys at elevated temperature2017

    • Author(s)
      Yuanyuan Lu, Jyunpei Yamada, Junya Nakamura, Kyosuke Yoshimi, Hidemi Kato
    • Journal Title

      Journal of Alloys and Compounds

      Volume: 696 Pages: 130-135

    • DOI

      10.1016/j.jallcom.2016.11.211

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of Mo/Mo2C interface in MoSiBTiC alloy2016

    • Author(s)
      Junya Nakamura, Daiki Kanekon, Kyosuke Yoshimi
    • Journal Title

      Materials Letters

      Volume: 180 Pages: 646-654

    • DOI

      10.1016/j.matlet.2016.04.133

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Assessment of Long-Term Creep Rupture Strength of T91 Steel by Multiregion Rupture Data Analysis2016

    • Author(s)
      K. Maruyama, J. Nakamura and K. Yoshimi
    • Journal Title

      J. Pressure Vessel Technol

      Volume: 138 Issue: 3

    • DOI

      10.1115/1.4032647

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] EVALUATION OF LONG-TERM CREEP RUPTURE LIFE OF GR.91 STEEL BY ANALYSIS OF ON-GOING CREEP CURVES2016

    • Author(s)
      Kouichi Maruyama, Junya Nakamura, Kyosuke Yoshimi, Yuji Nagae
    • Journal Title

      Advances in Materials Technology for Fossil Power Plants, Proceedings from the Eighth International Conference

      Volume: -

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Presentation] ナノインデンテーション法を用いたMAX相Ti2AlCにおける塑性変形開始挙動の方位依存性2017

    • Author(s)
      和田 悠佑,関戸信彰,中村純也,大村孝仁,吉見享祐
    • Organizer
      日本金属学会2017年春期(第160回)講演大会
    • Place of Presentation
      首都大学東京 南大沢キャンパス 東京
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 電磁超音波共鳴法を用いたMo-Si-B合金の弾性率測定2017

    • Author(s)
      中村純也,関戸信彰,吉見享祐
    • Organizer
      日本学術振興会・耐熱金属材料第123委員会 平成29年3月期研究会 先進耐熱材料・プロセス分科会第50回
    • Place of Presentation
      東京工業大学大岡山キャンパス 東京
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
  • [Presentation] Toughness and High Temperature Strength of Nb-Si and MoSiBTiC Alloys2017

    • Author(s)
      Nobuaki Sekido, Junya Nakamura, Kyosuke Yoshimi
    • Organizer
      TMS 2017 146th Annual Meeting
    • Place of Presentation
      San Diego USA
    • Year and Date
      2017-02-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Effect of Off-Stoichiometry on Room Temperature Micro-Compression Behavior of Mo 5SiB2 Single Phase2016

    • Author(s)
      Junya Nakamura, Nobuaki Sekido and Kyosuke Yoshimi
    • Organizer
      2016 MRS Fall Meeting
    • Place of Presentation
      Boston USA
    • Year and Date
      2016-11-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In Situ and Ex Situ Indentation Examinations on α-Nb5Si32016

    • Author(s)
      Nobuaki Sekido, Junya Nakamura, Kyosuke Yoshimi, Takahito Ohmura and Seiji Miura
    • Organizer
      2016 MRS Fall Meeting
    • Place of Presentation
      Boston USA
    • Year and Date
      2016-11-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Oxidation Behavior of MoSiBTiC and MoSiBZrC Alloys2016

    • Author(s)
      Tomotaka Hatakeyama, Junya Nakamura, Nobuaki Sekido and Kyosuke Yoshimi
    • Organizer
      2016 MRS Fall Meeting
    • Place of Presentation
      Boston USA
    • Year and Date
      2016-11-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 局所力学特性評価装置を用いた塑性変形開始挙動の観測と金属間化合物への応用2016

    • Author(s)
      関戸信彰,吉見享祐,中村純也,大村孝仁
    • Organizer
      日本金属学会2016年(第159回)秋期講演大会
    • Place of Presentation
      大阪大学豊中キャンパス 大阪
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] マイクロピラーを使った非化学量論Mo5SiB2の室温破壊挙動2016

    • Author(s)
      中村純也,関戸信彰,吉見享祐
    • Organizer
      日本金属学会2016年(第159回)秋期講演大会
    • Place of Presentation
      大阪大学豊中キャンパス 大阪
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] フェライト - Fe2(Nb, W) Laves相間の結晶方位関係に対する合金元素の影響2016

    • Author(s)
      山形遼介,中村純也,関戸信彰,吉見享祐
    • Organizer
      日本金属学会2016年(第159回)秋期講演大会
    • Place of Presentation
      大阪大学豊中キャンパス 大阪
    • Year and Date
      2016-09-21
    • Related Report
      2016 Annual Research Report
  • [Presentation] Effect of Off-Stoichiometry of Mo5SiB2 on High Temperature Strength and Deformation Microstructure of Mo-Si-B Ternary Alloys2016

    • Author(s)
      J. Nakamura, K. Yoshimi
    • Organizer
      PRICM9
    • Place of Presentation
      国立京都国際会館 京都
    • Year and Date
      2016-08-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-temperature creep strength and room-temperature fracture toughness of MoSiBTiC alloy2016

    • Author(s)
      Kyosuke Yoshimi, Shiho Yamamoto, Mi Zhao, Junya Nakamura, Kouichi Maruyama
    • Organizer
      Beyond Nickel-Based Superalloys II
    • Place of Presentation
      Cambridge UK
    • Year and Date
      2016-07-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 微小圧縮試験法による Mo5SiB2 の室温変形および破壊挙動2016

    • Author(s)
      中村 純也,吉見 享祐
    • Organizer
      日本金属学会2016年春期 (第158回) 講演大会
    • Place of Presentation
      東京理科大学 (東京)
    • Year and Date
      2016-03-23
    • Related Report
      2015 Research-status Report
  • [Presentation] 1400℃で変形したMo5SiB2相中の転位下部組織2015

    • Author(s)
      中村 純也,吉見 享祐
    • Organizer
      日本金属学会2016年秋期 (第157回) 講演大会
    • Place of Presentation
      九州大学 (福岡)
    • Year and Date
      2015-09-16
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2018-03-22  

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