Title:
HIGHLY CORROSION RESISTANT ZIRCONIUM ALLOY, STRUCTURAL MATERIAL FOR NUCLEAR REACTOR CORE AND ITS PRODUCING METHOD
Document Type and Number:
Japanese Patent JP2001262259
Kind Code:
A
Abstract:
To improve the corrosion resistance and mechanical properties of a zirconium alloy to be used for a structural material for nuclear reactor core.
In the case a zirconium alloy containing a prescribed amount of precipitated components forming intermetallic compounds such as tin, iron, nickel and chromium is subjected to β treatment, liquid sodium is used as a refrigerant at the time of β rapid cooling to accelerate the cooling rate, thus the crystal grain sizes of the surface and inside of the zirconium alloy can be reduced, so that the corrosion resistance and mechanical properties of the zirconium alloy can be improved.
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Inventors:
HIGASHINAKAGAHA EMIKO
NINOMIYA SUSUMU
ISHIDA TAKESHI
NINOMIYA SUSUMU
ISHIDA TAKESHI
Application Number:
JP2000077206A
Publication Date:
September 26, 2001
Filing Date:
March 17, 2000
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G21C3/06; C22C16/00; C22F1/00; C22F1/18; G21C3/07; (IPC1-7): C22C16/00; C22F1/18; G21C3/06; G21C3/07
Attorney, Agent or Firm:
Norio Ogo (2 outside)
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