• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference: Residual Stress, Fitness - for - Service and Manufacturing Processes; 20030720-20030724; Cleveland,OH; US >INVESTIGATION OF RESIDUAL STRESSES CAUSED BY WELDING, CLADDING AND TEMPERING OF REACTOR PRESSURE VESSELS
【24h】

INVESTIGATION OF RESIDUAL STRESSES CAUSED BY WELDING, CLADDING AND TEMPERING OF REACTOR PRESSURE VESSELS

机译：反应堆压力容器的焊接，熔覆和回火导致的残余应力的研究

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

Calculations of residual stress fields, which arise after welding, cladding and tempering, were performed as applied to reactor pressure vessels (RPVs) of WWER types. These calculations are based on a procedure, which takes into account Fe_α reversible Fe_γ transformation happening in base and weld metal under welding and cladding, and also creep during tempering. The procedure is based on solutions of the temperature and non-isothermal elasto-plastic problem with and without creep by the finite element method. On the basis of the performed investigation it is shown that Fe_α reversible Fe_γ transformation may affect the residual stress distribution. An analysis of cases has been performed for which the above effect is strong and for which this effect may be ignored. On the basis of the calculation performed, an engineering procedure is proposed that allows to determine the residual stress fields in welds of the WWER-440 and WWER-1000 for various durations of post-weld tempering.
机译：焊接，熔覆和回火后产生的残余应力场的计算适用于WWER类型的反应堆压力容器（RPV）。这些计算基于一个程序，该程序考虑了在焊接和熔覆下母材和焊缝金属中发生的Fe_α可逆Fe_γ相变以及回火过程中的蠕变。该程序基于有限元方法在有无蠕变的温度和非等温弹塑性问题的解决方案基础上。根据进行的研究表明，Fe_α可逆的Fe_γ相变可能会影响残余应力分布。已经对上述效果很强并且可以忽略该效果的情况进行了分析。根据执行的计算，提出了一种工程程序，该程序可以确定WWER-440和WWER-1000焊缝在回火后不同持续时间下的残余应力场。

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