配重叶片低循环疲劳试验后粘结物分析  

Investigation on Sticking Substance of CounterweightBlade Finished Low Cycle Fatigue Test

作　　者：段兵兵 冯磊 孙凯 DUAN Bingbing;FENG Lei;SUN Kai(AECC Hunan Aviation Powerplant Research Institute,Zhuzhou Hunan 412002;Hunan Key Laboratory of Turbomachinery on Small and Medium Aero-Engine,Zhuzhou Hunan 412002)

机构地区：[1]中国航发湖南动力机械研究所,湖南株洲412002 [2]中小型航空发动机叶轮机械湖南省重点实验室,湖南株洲412002

出　　处：《中国科技纵横》2023年第3期54-56,共3页China Science & Technology Overview

摘　　要：某涡轮盘在完成第1阶段低循环疲劳试验后,分解涡轮转子时发现配重叶片工作面出现粘结物,为弄清楚原因,本文从外观、金相、断口、成分方面进行了检查分析,结果表明:配重叶片材质及冶金质量正常,粘结物来源于榫头、榫槽工作面挤压变形磨损。Afterthe first stage lowcyclefatigue(LCF)testofaturbinedisk,sticking substance of the counterweightbladeswas found when disassembling turbine rotor.In order to found out the reason,this paper presents the investigation in several ways—appearance,metallographic,fracture,element.The result shows that the element and metallurgical quality are normal,and the sticking substance roots in compression deformation between blade tenon and disk mortise.

关 键 词：配重叶片 低循环疲劳试验 粘结物 

分 类 号：V225.1[航空宇航科学与技术—飞行器设计]