公开(公告)号：US08116422B2

公开(公告)日：2012-02-14

申请号：US11320477

申请日：2005-12-29

申请人： Daniel Reese Lutz ,  Gerald Allen Potts ,  Yang-Pi Lin ,  Sheikh Tahir Mahmood ,  Mark Andrew Dubecky ,  David William White ,  John Schardt

发明人： Daniel Reese Lutz ,  Gerald Allen Potts ,  Yang-Pi Lin ,  Sheikh Tahir Mahmood ,  Mark Andrew Dubecky ,  David William White ,  John Schardt

IPC分类号： G21C9/00 ,  G21C7/10

CPC分类号： G21C3/07 ,  G21C3/324 ,  G21Y2002/203 ,  G21Y2002/207 ,  G21Y2004/10 ,  G21Y2004/201 ,  Y02E30/40

摘要： A zirconium alloy suitable for forming reactor components that exhibit reduced irradiation growth and improved corrosion resistance during operation of a light water reactor (LWR), for example, a boiling water reactor (BWR). During operation of the reactor, the reactor components will be exposed to a strong, and frequently asymmetrical, radiation fields sufficient to induce or accelerate corrosion of the irradiated alloy surfaces within the reactor core. Reactor components fabricated from the disclosed zirconium alloy will also tend to exhibit an improved tolerance for cold-working during fabrication of the component, thereby simplifying the fabrication of such components by reducing or eliminating subsequent thermal processing, for example, anneals, without unduly degrading the performance of the finished component.

摘要翻译： 适用于形成反应器组分的锆合金，其在轻水反应器（LWR），例如沸水反应器（BWR）的操作期间表现出减少的照射生长和改善的耐腐蚀性。 在反应器的操作期间，反应器部件将暴露于足以引起或加速反应堆堆芯内辐射的合金表面的腐蚀的强烈且常常不对称的辐射场。 由公开的锆合金制造的反应器部件也将倾向于在部件制造期间显示出对冷加工的改善的公差，从而通过减少或消除随后的热处理（例如退火）来简化这些部件的制造，而不会不适当地降低 成品组件的性能。

公开(公告)号：US5681404A

公开(公告)日：1997-10-28

申请号：US385807

申请日：1995-02-09

申请人： Ronald Bert Adamson ,  Gerald Allen Potts

发明人： Ronald Bert Adamson ,  Gerald Allen Potts

IPC分类号： G21C3/06 ,  C22F1/00 ,  C22F1/18 ,  G21C3/07

CPC分类号： G21C3/07 ,  C22F1/186 ,  G21Y2002/103 ,  G21Y2002/104 ,  G21Y2002/20 ,  G21Y2002/201 ,  G21Y2004/20 ,  G21Y2004/201 ,  Y02E30/40 ,  Y10S376/90

摘要： In a zirconium-alloy fuel element cladding, a method for generating regions of coarse and fine intermetallic precipitates across the cladding wall is provided. The method includes steps of specific heat treatments and anneals that coarsen precipitates in the bulk of the cladding. The method also includes at least one step in which an outer region (exterior) of the cladding is heated to the beta or alpha plus beta phase, while an inner region (interior) is maintained at a temperature at which little or no metallurgical change occurs. This method produces a composite cladding in which the outer region comprises fine precipitates and the inner region comprises coarse precipitates.

摘要翻译： 在锆合金燃料元件包层中，提供了跨越包覆壁产生粗细和金属间析出物的区域的方法。 该方法包括在大部分包层中粗化析出物的特定热处理和退火步骤。 该方法还包括至少一个步骤，其中包层的外部区域（外部）被加热到β或α+β相，而内部区域（内部）保持在很少或不发生冶金变化的温度 。 该方法产生复合包层，其中外部区域包含微细的沉淀物，并且内部区域包括粗大的沉淀物。