• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Corrosion-Fatigue Failure of Gas-Turbine Blades in an Oil and Gas Production Plant
【2h】

Corrosion-Fatigue Failure of Gas-Turbine Blades in an Oil and Gas Production Plant

机译：油气生产厂中燃气轮机叶片的腐蚀疲劳失效

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper investigates the root cause of a failure in gas-turbine blades, made of Nimonic-105 nickel-based superalloy. The failure was reported in two blades in the second stage of a turbine-compressor of a gas turbine in the hot section. Two failed blades were broken from the root and from the airfoil. The failure took place after 20 k h of service exposure in the temperature range 700–850 °C, with the rotating speed being in the range 15,000–16,000 rpm. The microstructures of the failed blades were studied using optical/electron microscopes. Energy dispersive X-ray spectroscopy (EDS) was employed for phase identification. Results showed that failure first initiated from the root. The dominant failure mechanism in the root was concluded to be corrosion-fatigue. The failure scenario was suggested based on the results obtained.
机译：本文研究了由Nimonic-105镍基高温合金制成的燃气轮机叶片故障的根本原因。据报道，在热区，燃气轮机的第二级涡轮叶片出现故障。从根部和机翼上折断了两个故障叶片。在700-850°C的温度范围内工作20小时后，旋转速度在15,000-16,000 rpm范围内发生。使用光学/电子显微镜研究了失效叶片的微观结构。能量色散X射线光谱（EDS）用于鉴定相。结果表明，故障首先是从根开始的。根部的主要失效机理被认为是腐蚀疲劳。根据获得的结果提出了故障方案。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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