...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of nuclear engineering and radiation science >Implementation of Hydrogen Solid Solubility Data and Precipitation Threshold Stresses in the Fuel Rod Code TESPA-ROD
【24h】

Implementation of Hydrogen Solid Solubility Data and Precipitation Threshold Stresses in the Fuel Rod Code TESPA-ROD

机译：燃料棒码Tespa-棒中氢固体溶解度数据和沉淀阈值应力的实施

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

During operation of light water reactors, the Zircaloy fuel rod cladding is susceptible for hydrogen uptake. When the local solubility limit of hydrogen in Zircaloy is reached, additional hydrogen precipitates as zirconium hydride, which affects the ductility of the fuel rod cladding. Especially, the radially aligned hydrides enhance embrittlement, while circumferential (azimuthal) hydrides have a less detrimental effect. In this work, the influence of high temperatures during the dry storage period on hydride dissolution and precipitation is demonstrated. Therefore, in a descriptive example scenario being discussed, the simulation of a limited heat removal from the cask will heat up the dry storage cask for days and causes dissolution of hydrides in the cladding. Depending on the threshold stress for reorientation, the following cooldown results on different hydride precipitation behavior. The threshold stress leads to an enhanced or delayed precipitation of radial hydrides. The GRS fuel rod code TESPA-ROD is equipped with a new model for hydrogen solubility and applied to long-term storage transients. In this article, hydride refers to zirconium hydrides formed inside the fuel rod cladding.
机译：在轻水反应器的运行过程中，锆瓦罗伊燃料棒包层易于氢吸收。当达到锆氢氢的局部溶解度极限时，额外的氢沉淀为氢化锆，这影响了燃料棒包层的延展性。特别是，径向对齐的氢化物增强脆化，而周向（方位角）氢化物具有较差的效果。在这项工作中，证明了在干燥储存期间对氢化物溶解和沉淀期间的高温影响。因此，在讨论的描述性示例场景中，从桶中的有限热量去除的模拟将加热干燥的储存桶的天数，并导致氢化物在包层中的溶解。根据用于重新定位的阈值应力，以下冷却使结果导致不同的氢化物沉淀行为。阈值应力导致径向氢化物的增强或延迟沉淀。 GRS燃料棒代码Tespa-Rod配备了一种用于氢溶解度的新模型，并应用于长期储存瞬变。在本文中，氢化物是指在燃料棒包层内部形成的氢化锆。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号