• Title/Summary/Keyword: 지르코늄 합금

Search Result 64, Processing Time 0.024 seconds

Overview of Zirconium Production and Recycling Technology (지르코늄의 제조(製造)와 재활용기술(再活用技術))

  • Park, Kyoung-Tae;Kim, Seung-Hyun;Hong, Soon-Ik;Choi, Mi-Sun;Cho, Nam-Chan;Yoo, Hwan-Jun;Lee, Jong-Hyeon
    • Resources Recycling
    • /
    • v.21 no.5
    • /
    • pp.18-30
    • /
    • 2012

  • Zirconium is one of the most important material used as cladding of fuel rods in nuclear reactors because of its high dimensional stability, good corrosion resistance and especially low neutron-absorbing cross section. However, Hf free nuclear grade Zr sponge is commercially produced by only three countries including USA, France and Russia. So, Zr has been thoroughly managed as a national strategic material in Korea. Most of the zirconium is used for Korean nuclear industry as nuclear fuel cladding materials manufactured from Hf free Zr alloy raw material. Also, there are some other applications such as alloying element and detonator. In this review, zirconium production and recycling technologies have been reviewed and current industrial status was also analyzed. And recent achievements in innovative reduction technologies such as electrolytic reduction process and molten oxide electrolysis were also introduced.

  • https://doi.org/10.7844/kirr.2012.21.5.18 인용 PDF KSCI

Deformation Behavior Analysis of Zr-702 Alloy during ECAP at Elevated Temperature (온간 ECAP 공정에서 Zr-702 합금의 변형거동해석)

  • 이강무;권기환;채수원;권숙인;김명호;황선근
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2002.05a
    • /
    • pp.877-881
    • /
    • 2002

  • Much research efforts have been made on the equal channel angular pressing(ECAP) which produces ultra-fine grains. In this paper the ECAP processes with Zr-702 alloy at elevated temperature and at room temperature are considered. Both two-dimensional and three-dimensional finite element analyses have been employed to investigate the deformation behaviors of specimen during ECAP process.

  • PDF