• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Nuclear Materials: Materials Aspects of Fission and Fusion >Revealing the synergistic effects of sequential and simultaneous dual beam irradiations in tungsten via in-situ TEM
【24h】

Revealing the synergistic effects of sequential and simultaneous dual beam irradiations in tungsten via in-situ TEM

机译：揭示顺序和同时双光束辐射通过原位TEM在钨中的协同效应

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

Elucidating the synergistic effects of different energetic beams on the radiation response of nuclear materials is critical for developing an improved methodology for their evaluation when exposed to extreme environments. This article describes in-situ sequential (He implantation followed by Kr irradiation and vice-versa) and simultaneous (heavy ion Kr irradiation and He implantation) dual beam irradiations performed on tungsten at 1223 K. Dislocation loop density, average area, and total loop damage as a function of irradiation history and dose/fluence are quantified. The loop Burgers vectors and cavity damage (cavity density, size and total change in volume) are also determined at the final maximum dose for each condition. The loop damage evolution was different in all cases, with the smallest loop damage observed in the simultaneous experiment. Annihilation of Kr generated dislocation loops during He implantation in the Kr thorn He experiment was an unanticipated observation that may be explained by the dynamic evolution of dislocation loop sink strengths and time-dependent defect fluxes. Dislocation loop raft formation, denuded zones near extended defects, and cavity damage are compared across the different conditions. The phenomena observed and discussed in this work will stimulate further experimental and computational modeling activities leading to improved fundamental understanding of the irradiation response of nuclear materials under reactor-similar environments. Published by Elsevier B.V.
机译：阐明不同能量梁对核材料辐射响应的协同效应对于在暴露于极端环境时，在开发其评估的改进方法是至关重要的。本文介绍了原位顺序（他植入后跟KR辐照，反之亦然），同时（重离子KR辐照和HE植入）在1223K脱位循环密度，平均面积和总环上进行双梁辐照。量化损害作为辐照历史和剂量/注重的函数。环汉堡矢量和腔损伤（腔密度，尺寸和体积的总变化）也被确定为每种条件的最终最大剂量。在所有情况下，在所有情况下，环路损伤的进化都不同，在同时实验中观察到最小的回路损伤。 KR生成的脱位循环在KR刺的植入刺穴期间，他实验是一种意外观察，这可以通过位错循环沉积强度和时间依赖性缺陷通量的动态演变来解释。位错环筏形成，剥夺缺陷附近的区域，横跨不同条件比较腔损伤。在这项工作中观察到和讨论的现象将刺激进一步的实验和计算建模活动，导致改善对反应堆类似环境下核材料的照射响应的基本理解。由elsevier b.v出版。

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