Title:
ZIRCONIUM ALLOY FOR FUEL ASSEMBLY FOR NUCLEAR REACTOR
Document Type and Number:
Japanese Patent JP2001040441
Kind Code:
A
Abstract:
To increase a proof stress (strength) and improve corrosion resistance, and improve a absorptivity for hydrogen and a dimensional stability.
The alloy incorporates Fe, Cr, Sn, and Nb, further actively incorporates O. The compounding ratio of these elements shows an improved effects both in a strength and a corrosion resistance. The total amount regulation of Sn and of Nb affect the strength. The preferable total amounts of Sn and Nb are 0.7% or larger. The total amount regulation of Fe and of Cr are also important. The preferable total amount regulation of Fe and of Cr are 0.28 to 10%.
Inventors:
SUZUKI NARIMITSU
TAKAHASHI TOSHIMICHI
DOI SOICHI
SUGANO MITSUTERU
SENDA YASUHIDE
KIDO TOSHIYA
TAKAHASHI TOSHIMICHI
DOI SOICHI
SUGANO MITSUTERU
SENDA YASUHIDE
KIDO TOSHIYA
Application Number:
JP21733899A
Publication Date:
February 13, 2001
Filing Date:
July 30, 1999
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
NUCLEAR DEV CORP
NUCLEAR DEV CORP
International Classes:
C22C16/00; G21C3/07; G21C3/30; (IPC1-7): C22C16/00; G21C3/30
Attorney, Agent or Firm:
Minoru Kudo (1 person outside)
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