• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Creep-Fatigue Interaction and Cyclic Strain Analysis in P92 Steel Based on Test
【24h】

Creep-Fatigue Interaction and Cyclic Strain Analysis in P92 Steel Based on Test

机译：基于试验的P92钢蠕变疲劳相互作用和循环应变分析

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

This work focused on the interaction of creep and fatigue and cyclic strain analysis in high-chromium ferritic P92 steel based on load-controlled creep-fatigue (CF) tests and conventional creep test at 873 K. Mechanical testing shows that the cyclic load inhibits the propagation of creep damage in the P92 steel and CF interaction becomes more severe with the decrease in the holding period duration and stress ratio. These results are also verified by the analysis of cyclic strain. The fatigue lifetime reduces with the increasing of the holding period duration and it does not reduce much with the increasing stress ratio especially under the conditions of long holding period duration. The cyclic strains (i.e., the strain range and creep strain) of CF tests consist of three stages, which is the same as those for the conventional creep behavior. The microscopic fracture surface observations illustrated that two different kinds of voids are observed at the fracture surfaces and Laves phase precipitates at the bottom of the voids.
机译：这项工作的重点是基于载荷控制蠕变疲劳（CF）试验和873 K的常规蠕变试验，对高铬铁素体P92钢的蠕变和疲劳相互作用以及循环应变分析进行了分析。机械测试表明，循环载荷会抑制随着保温时间的延长和应力比的降低，P92钢的蠕变损伤的传播和CF相互作用变得更加严重。通过循环应变分析也证实了这些结果。疲劳寿命随着保持时间的增加而减小，并且随着应力比的增加而减小得很少，特别是在保持时间较长的条件下。 CF测试的循环应变（即应变范围和蠕变应变）包括三个阶段，与常规蠕变行为的三个阶段相同。显微断裂表面观察表明，在断裂表面观察到两种不同类型的空隙，而Laves相在空隙底部沉淀。

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