...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering failure analysis >Failure analysis on high temperature superheater Inconel~R 800 tube
【24h】

Failure analysis on high temperature superheater Inconel~R 800 tube

机译：Inconel〜R 800高温过热器的故障分析

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 paper presents failure analysis on a super alloy Inconel~R 800 superheater tube in Kapar Power Station Malaysia. Visual inspection, microscopic examinations and creep analysis utilizing available related data are carried out to evaluate the failure mechanism and its root cause. The failed high temperature superheater (HTSH) tube was found snapped into two parts, heavily distorted shape and bent at several points. Microstructures of the failed tube showed that creep crack initiated at both external and internal surfaces of the tube and propagated as grain boundary creep cavities coalesced to form intergranular cracks. The severe geometry of tube causing steam flow starvation is identified to have caused increasing tube metal temperature resulting in overheating of the failed tube. Creep rupture is revealed as the cause of failure of the superheater tube.
机译：本文介绍了马来西亚Kapar发电厂的超级合金Inconel〜R 800过热器管的失效分析。利用可用的相关数据进行目视检查，显微镜检查和蠕变分析，以评估故障机理及其根本原因。发现发生故障的高温过热器（HTSH）管卡成两部分，形状严重变形并在多个点弯曲。失效管的微观结构表明，蠕变裂纹在管的内外表面均开始，并随着晶界蠕变腔聚结形成晶间裂纹而传播。导致蒸汽流量不足的严重几何形状的管已被识别为导致管金属温度升高，从而导致故障管过热。蠕变破裂被揭示为过热器管失效的原因。

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