...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials at High Temperatures >Failure aspects of thermal barrier coatings
【24h】

Failure aspects of thermal barrier coatings

机译：隔热涂层的失效方面

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

The paper describes aspects of thermal barrier coating (TBC) microstructure and the physical and mechanical properties which they influence. The stress-strain behaviour of air plasma sprayed (APS) TBCs is discussed, including the role of residual stresses. Failure phenomena as well as the TMF behaviour of TBC coated nickel base superalloys are described. The role of bond coat oxidation on TBC life is discussed as well as some mechanical properties of vacuum plasma sprayed MCrAlY-bond coatings. Finally, life prediction methodologies are addressed and discussed in terms of a critical strain accumulation concept. From this is derived an equation which covers time dependent effects such as bond coat oxidation and sintering. The paper concludes with a brief summary of the evolution of TBCs in aero and industrial gas turbines, and the failure modes in each. In particular the increased importance of erosion, in industrial gas turbines, due to water injection is highlighted.
机译：本文介绍了热障涂层（TBC）微观结构的各个方面以及它们影响的物理和机械性能。讨论了空气等离子喷涂（APS）TBC的应力应变行为，包括残余应力的作用。描述了TBC涂层镍基高温合金的失效现象以及TMF行为。讨论了粘结涂层氧化对TBC寿命的作用，以及真空等离子喷涂MCrAlY-粘结涂层的一些机械性能。最后，根据临界应变累积概念对寿命预测方法进行了讨论。由此得出一个方程，该方程涵盖了随时间变化的影响，例如粘结层的氧化和烧结。本文最后简要概述了航空和工业燃气轮机中TBC的演变以及每种故障模式。特别强调了由于注水，在工业燃气轮机中腐蚀的重要性日益提高。

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