理化检验：物理分册2012，Vol.48Issue(8)：538-542,5.
某航空发动机涡轮叶片的断裂分析
Fracture Analysis on Aero-engine Turbine Blades
杨健 1孙智君1
作者信息
- 1. 西安航空动力股份有限公司材料检测研究中心,西安710021
- 折叠
摘要
Abstract
Some unusual sounds appeared when an aero-engine was servicing. When it was checked on the ground it was found that all the HP1, HP2 turbine blades and HP2 guide vanes fractured. By means of on-site investigation, fracture analysis and metallographic examination, it was found that the HP1 turbine blade which fractured at the root elongation was the first fracture part, and the gathered distribution of casting loose defect was the main cause for the early fatigue fracture of the HP1 turbine blade. Fraeture of all the other turbine blades was overload fracture caused by secondary injury.关键词
涡轮叶片/疲劳断裂/铸造疏松Key words
turbine blade/fatigue fraeture/casting loose引用本文复制引用
杨健,孙智君..某航空发动机涡轮叶片的断裂分析[J].理化检验：物理分册,2012,48(8):538-542,5.
