Title:
ZIRCONIUM BASE ALLOY, FUEL ASSEMBLY FOR WATER-COOLED NUCLEAR POWER REACTOR USING THE SAME, AND CHANNEL BOX
Document Type and Number:
Japanese Patent JP2010145326
Kind Code:
A
Abstract:
To prevent corrosion and hydrogen absorption of a zirconium base alloy.
When it is assumed that a tin concentration, an iron concentration, and a chromium concentration are CSn(mass%), CFe(mass%), and CCr(mass%), respectively, alloy components of the zirconium base alloy to be used for a fuel rod 14, a spacer 17, a water rod 22, or a channel box 23 of a fuel assembly 10 to be loaded into a water-cooled nuclear power reactor satisfy CSn≤1.2, 0.5≤CFe+CCr≤0.8, and 0.26≤CFe/CCr≤1.7, and include one or more elements to be chosen from among vanadium, lanthanum, praseodymium, and germanium. When it is assumed that a total element concentration of four types of elements of vanadium, lanthanum, praseodymium, and germanium is Cx(mass%), it is desired to satisfy 0.1≤Cx≤0.31.
COPYRIGHT: (C)2010,JPO&INPIT
Inventors:
AOMI MASAKI
EITO YOSHINORI
ISHIMOTO SHINJI
TAKAGAWA YOSHIHIRO
Application Number:
JP2008325251A
Publication Date:
July 01, 2010
Filing Date:
December 22, 2008
Assignee:
GLOBAL NUCLEAR FUEL JP CO LTD
NIPPON NUCLEAR FUEL DEV
International Classes:
G21C3/07; C22C16/00; G21C3/324; G21C3/34
Domestic Patent References:
| JPH024937A | 1990-01-09 | | | |
| JPH02167495A | 1990-06-27 | | | |
Attorney, Agent or Firm:
Osamu Kikuchi
Norio Ohu
