金属加工（热加工）Issue(5)：153-160,8.
某压气机叶片疲劳失效分析
Analysis of the blade fracture
谢郭湘林 1周麒 2王晓晓1
作者信息
- 1. 中国航发贵州黎阳航空动力有限公司 贵州贵阳 550014
- 2. 中国航发北京航空材料研究院 北京 100095
- 折叠
摘要
Abstract
A blade broke from the tenon.Macroscopic inspection,microscopic inspection,metallographic structure and hardness inspection were carried out on the blade and its corresponding mortise and groove.The results showed that there were no abnormalities in the blade material and metallographic structure,and the hardness met the requirements.The fracture nature of the blade was high-cycle fatigue,with multiple fatigue zones,and the source area was a short-term source.The initiation of cracks was related to fretting damage on the side of the tenon;The silver layer near the edge of the mating surface of the blade tenon and the mortise is incomplete,there is residual sand on the surface of the metal substrate,and the tenon and the mortise are tightly fitted.These factors will deteriorate the surface contact state and cause local fretting damage.关键词
叶片/钛合金/疲劳断裂/痕迹分析/微动磨损Key words
blade/titanium alloy/fatigue fracture/trace analysis/fretting wear引用本文复制引用
谢郭湘林,周麒,王晓晓..某压气机叶片疲劳失效分析[J].金属加工（热加工）,2025,(5):153-160,8.
