理化检验-物理分册2011，Vol.47Issue(2)：130-132,3.
汽轮机低压次末级叶片开裂原因分析
Cause Analysis on Cracking of Turbine Low Pressure Penultimate Bladeg
张小伍 1陈啸 1田宇1
作者信息
- 1. 哈尔滨汽轮机厂有限责任公司,哈尔滨,150046
- 折叠
摘要
Abstract
Low pressture penultimate blades of a turbine set cracked during runuing, and the cracking reason was, analyzed by means of chemical compositions analysis, mechanical properties testing, metallographic examination and so on.The results show that the cracking initiated at the stress concentration position on the maximum stress surface of blade root, Existing closed angle and notch at the blade shape conductor transition region was the main reason for the cracking, and inclusions near the surface also had a certain impact on the cracking关键词
汽轮机叶片/开裂/疲劳/应力集中Key words
turbine blade/ crack/ fatigue fracture/ stress concentration分类
矿业与冶金引用本文复制引用
张小伍,陈啸,田宇..汽轮机低压次末级叶片开裂原因分析[J].理化检验-物理分册,2011,47(2):130-132,3.
