内蒙古电力技术Issue(5)：41-44,4.DOI:10.3969/j.issn.1008-6218.2014.05.010
300 MW汽轮机低压转子动叶片断裂分析
Failure Analysis of Low-pressure Rotor Blade of 300 MW Steam Turbine
张涛 1田峰 1贺飞雄 2侯国新 1王文豪1
作者信息
- 1. 内蒙古电力科学研究院，呼和浩特 010020
- 2. 东方希望包头稀土铝业有限责任公司，内蒙古 包头 014060
- 折叠
摘要
Abstract
The low-pressure rotor 0Cr17Ni4Cu4Nb blade of a 300 MW steam turbine was broken when the unit was running. The methods of chemical composition analysis, mechanical properties measurement, microstructure observation and fracture patterns examination were used in order to analyze fracture cause of blade. The results showed that the main fracture mechanics of blade was corrosion-fatigue cracking. The cracks generated from corrosion pits and extended when the circulate stress was acted on blade. Suggested to monitor the steam-water quality and running state in installing and running.关键词
300 MW汽轮机/低压转子/0Cr17Ni4Cu4Nb动叶片/腐蚀坑/腐蚀疲劳断裂Key words
300 MW steam turbine/low-pressure blade/0Cr17Ni4Cu4Nb rotor blade/corrosion pits/corrosion-fatigue cracking分类
信息技术与安全科学引用本文复制引用
张涛,田峰,贺飞雄,侯国新,王文豪..300 MW汽轮机低压转子动叶片断裂分析[J].内蒙古电力技术,2014,(5):41-44,4.
