Erbium-containing zirconium alloy, method for preparing and shaping the same, and structural part containing said alloy

A kind of technology of zirconium alloy and component, applied in the field of preparing and forming the alloy

Inactive Publication Date: 2009-09-09
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0041] The above-mentioned drawbacks and limitations of the single-layer cladding disclosed in patent application FR 2789404 [1] are of course applicable when a three-layer cladding is envisaged

Method used

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  • Erbium-containing zirconium alloy, method for preparing and shaping the same, and structural part containing said alloy
  • Erbium-containing zirconium alloy, method for preparing and shaping the same, and structural part containing said alloy
  • Erbium-containing zirconium alloy, method for preparing and shaping the same, and structural part containing said alloy

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Embodiment Construction

[0069] 1. Manufacture the alloy of the present invention and the mechanical properties of the resulting alloy by melting

[0070] Plates made of erbium-containing zirconium alloys were fabricated and formed using the melting method of the present invention.

[0071] Preferably, the melting process may further comprise one or more of the following steps, preferably carried out in an inert atmosphere or in vacuum:

[0072] - Remelting in the mold followed by solidification;

[0073] - heat treatment;

[0074] - hot forming and / or cold forming steps, for example: rolling (rolling);

[0075] - Machining, eg milling and / or sandblasting.

[0076] Specifically, the melting process comprises the following successive steps, which are carried out, if desired, in an inert atmosphere or in a vacuum:

[0077] - remelting followed by solidification;

[0078] - first heat treatment;

[0079] - machining, preferably milling;

[0080] - hot forming and / or cold forming, preferably roll...

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Abstract

The invention relates to a zirconium alloy containing erbium as consumable neutronic poison, wherein said alloy contains, in weight: 3 to 12 % of erbium; 0.005 to 5 % of additional elements such as additives and / or manufacturing impurities; the balance consisting of zirconium. The invention also relates to a structural part containing such a zirconium alloy, and to methods for manufacturing and shaping the zirconium alloy by sintering or fusion.

Description

technical field [0001] The present invention relates generally to the field of atomic nuclei, and in particular to nuclear fuel, and to zirconium alloys containing erbium, structural components containing the alloys, and methods of making and forming the alloys. [0002] In particular, this alloy can be used to prepare constituent elements (such as cladding), said nuclear reactors use water as a coolant, and whether compacted or not, said alloy can be commonly used in any reactor core or nuclear boiler requiring an adjustable and / or time-varying neutron load reactivity. The alloy can also be used in any type of reactor operating at high burnup rates. Background technique [0003] A permanent goal of producers of nuclear-based power is to increase the availability of their power plant parks and to reduce the cost of generating said power. For example, in PWR or BWR reactors, one of the methods used to achieve this goal is to increase the cycle length (cycle length) and cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C16/00C22C1/02C22C1/04G21C3/00C22F1/18B32B15/01
CPCB22F7/06B22F2998/10C22C1/02B22F2998/00C22F1/186C22C1/0458C22C16/00G21C3/07Y02E30/30B22F3/1007B22F2201/10B22F2201/20B22F3/02B22F3/24B32B15/01
Inventor J·C·布拉谢C·沙贝尔P·奥列尔S·于尔瓦
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
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