• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Stress Evaluation Using Neutrons and Synchrotron Radiation; 20070924-26; Vienna(AT) >Residual stress analyses by neutron diffraction in irradiated double-V butt welded steel plates
【24h】

Residual stress analyses by neutron diffraction in irradiated double-V butt welded steel plates

机译：辐照双V对接焊接钢板中子衍射残余应力分析

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

Neutron irradiation is known to have a considerable impact on the mechanical characteristics and the behaviour of materials and components. The distribution of residual stresses is one of the properties affected by irradiation. However, because of the difficulties in performing measurements in radioactive components, not many experimental data have to date been collected. At the High Flux Reactor (HFR) of the European Commission's Joint Research Centre (JRC), a facility has been developed for residual stress measurements in steel specimens subjected to long-term irradiation. The objective of this development was to establish the neutron radiation induced changes in the residual stresses around welds in test pieces representative of the core shroud of boiling water reactors. Residual Stress measurements on such double-V butt welds in stainless steel plates after irradiation exposure have been performed by neutron diffraction using this facility. The comparison with measurements in non-irradiated companion specimens [1] showed that irradiation changed the distribution of residual stresses. The results suggested that the impact of irradiation varied with the distance of the test location from the specimen surface. On the basis of currently measured data we could not draw definitive conclusion about the influence of neutron dose and irradiation duration upon the stress modification.
机译：已知中子辐照对机械特性以及材料和部件的性能有相当大的影响。残余应力的分布是受辐射影响的特性之一。但是，由于在放射性成分中进行测量有困难，因此迄今尚未收集到许多实验数据。在欧洲委员会联合研究中心（JRC）的高通量反应堆（HFR）中，已经开发出了一种设施，用于对经受长期辐照的钢样本中的残余应力进行测量。这一发展的目的是在代表沸水反应堆堆芯护罩的试件中建立中子辐射引起的焊缝周围残余应力变化。使用该设备通过中子衍射对暴露于不锈钢板的此类双V对接焊缝上的残余应力进行了测量。与未辐照伴生标本的测量结果比较[1]表明，辐照改变了残余应力的分布。结果表明，辐射的影响随测试位置与样品表面的距离而变化。根据当前测量的数据，我们无法得出关于中子剂量和辐照持续时间对应力变化的影响的明确结论。

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