ジルコニウム基合金並びにこれを用いた水冷却型原子炉用燃料集合体およびチャンネルボックス

Title:

ジルコニウム基合金並びにこれを用いた水冷却型原子炉用燃料集合体およびチャンネルボックス

Document Type and Number:

Japanese Patent JP5551869

Kind Code:

B2

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.

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Inventors:

青見 Masaki
Yoshinori Eito
Shinji Ishimoto
Yoshihiro Takagawa

Application Number:

JP2008325251A

Publication Date:

July 16, 2014

Filing Date:

December 22, 2008

Export Citation:

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Assignee:

Global Nuclear Fuel-Japan Co., Ltd.
Japan nuclear fuel development incorporated company

International Classes:

G21C3/07; C22C16/00; G21C3/324; G21C3/34

Attorney, Agent or Firm:

Patent business corporation cherry tree international patent firm
Kikuchi 治

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