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Study on microstructure and mechanical properties of zirconium hydride for improvemnent of cladding assessment

Research Project

Project/Area Number 26420871
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionOsaka University

Principal Investigator

MUTA Hiroaki  大阪大学, 工学研究科, 准教授 (60362670)

Co-Investigator(Renkei-kenkyūsha) YAMANAKA Shinsuke  大阪大学, 大学院工学研究科, 教授 (00166753)
Research Collaborator MATSUNAGA Junji  株式会社グローバル, ニュークリア・フュエル
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords水素化物 / 燃料被覆管 / ジルコニウム水素化物 / EBSD観察
Outline of Final Research Achievements

Non-cracked zirconium hydride samples were fabricated in Sievert's apparatus. The activation and hydrogenation temperature were carefully controlled with consideration of the volume change in the phase transformation. The crystal structure and microstructure were studied by neutron diffraction pattern analysis and EBSD observation. The Young's modulus and hardness were measured by the indentation test, and crystal orientation on the testing point was observed by EBSD.
The microstructure of hydride sample strongly depends on the fabrication condition. The hydride prepared from a-Zr displays significant stacking faults in the {111} plane and in the pseudo-layered microstructure. Strong crystal orientation dependence of mechanical properties were confirmed by the indentation test and EBSD observation.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

All Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Presentation] Microstructure and mechanical properties of Zr hydrides2016

    • Author(s)
      R. Nishikane, H. Muta, Y. Ohishi, K. Kurosaki, S. Yamanaka, K. Sakamoto, J. Matsunaga, S. Harjo, T. Kawasaki
    • Organizer
      NuMat2016: The Nuclear Materials Conference
    • Place of Presentation
      フランス、モンペリエ
    • Year and Date
      2016-11-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] EBSD analysis of A-EDC tested Zr-Nb alloy2016

    • Author(s)
      H. Muta, Z. Zishou, Y. Matsukawa, Y. Shinohara, H. Abe, Y. Ohishi, K. Kurosaki, S. Yamanaka
    • Organizer
      NuMat2016: The Nuclear Materials Conference
    • Place of Presentation
      フランス、モンペリエ
    • Year and Date
      2016-11-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mechanical properties of Zirconium hydride2015

    • Author(s)
      Hiroaki Muta, Yusuke Ando, Ryoji Nishikane, Yuji Ohishi, Ken Kurosaki, Shinsuke Yamanaka
    • Organizer
      3rd Asian Zirconium Workshop
    • Place of Presentation
      福井大学附属国際原子力工学研究所(福井県敦賀市)
    • Year and Date
      2015-10-05
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Zr水素化物の微細組織観察と機械的特性評価2015

    • Author(s)
      西金遼二, 牟田浩明, 大石佑治, 黒崎 健, 山中伸介, 坂本 寛, 松永純3, Stefanus Harjo, 川崎卓郎
    • Organizer
      日本原子力学会
    • Place of Presentation
      静岡大学静岡キャンパス(静岡県静岡市)
    • Year and Date
      2015-09-09
    • Related Report
      2015 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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