Improvement of corrosion resistance of cladding by fiber reinforcement

• Project/Area Number: 24760716
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering
• Research Institution: Osaka University
• Principal Investigator: MUTA Hiroaki 大阪大学, 工学(系)研究科(研究院), 助教 (60362670)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 被覆管 / 腐食 / 酸化膜 / 核燃料被覆管 / ジルコニウム合金

Research Abstract

Zr/SiC fiber composites were fabricated and the mechanical properties and corrosion resistance were examined. The addition of the SiC fiber effectively increased the elastic modulus and the creep strength. However, the corrosion properties strongly deteriorated.
Intermetallic compounds of Zr(Fe,Cr)2, Zr2(Fe,Ni) and bZr-Nb alloy were additionally examined. The bZr-Nb alloy had a property similar to aZr, and the alloy showed highest corrosion resistance.

Research Products

• [Presentation] ジルコニウム合金被覆管に析出する金属間化合物の物性評価 (2014)
  • Author(s): 瀬野 普司
  • Organizer: 日本原子力学会2014年秋の大会
  • Place of Presentation: 京都大学
• [Presentation] 高温酸化Zr-Nb合金の微細構造観察 (2013)
  • Author(s): 牟田浩明
  • Organizer: 日本原子力学会2013年秋の大会
  • Place of Presentation: 八戸工業大学
• [Presentation] Zr水素化物における機械物性の結晶方位依存性の評価 (2013)
  • Author(s): 安藤祐介、荒木大地、牟田浩明、大石佑治、黒崎健、山中伸介
  • Organizer: 日本原子力学会2013年秋の大会
  • Place of Presentation: 八戸工業大学
• [Presentation] Mechanical properties of ceramic fiberreinforced Zr metal matrix composite (2012)
  • Author(s): Y. Sugiyama, Y. Ando, H. Muta, K. Kurosaki, Y. Ohishi, S. Yamanaka
  • Organizer: 2012 Materials Research Society Fall Meeting and Exhibit
  • Place of Presentation: Boston, USA
• [Presentation] Oxidation and hydrogenation behavior of intermetallic compounds in fuel cladding tubes (2012)
  • Author(s): Y. Ando, Y. Okada, H. Muta, Y. Etoh, K. Kurosaki, Y. Ohishi, S. Yamanaka
  • Organizer: Nuclear Materials 2012
  • Place of Presentation: Osaka, Japan
• [Presentation] Mechanical properties of SiC whisker reinforced Zr composite (2012)
  • Author(s): Y. Sugiyama, Y. Ando, H. Muta, K. Kurosaki, Y. Ohishi, S. Yamanaka
  • Organizer: Nuclear Materials 2012
  • Place of Presentation: Osaka, Japan