TC6钛合金风扇叶片表面异常的分析  

Analysis of Surface Anomalies of TC6 Titanium Alloy Fan Blades

作　　者：李成刚 张万虎 郑娟 乔雷 Li Cheng-gang;Zhang Wan-hu;Zheng Juan;Qiao Lei(AECC Aero Science and Technology Co.,Ltd.,Sichuan Chengdu 610503)

机构地区：[1]中国航发航空科技股份有限公司,四川成都610503

出　　处：《内燃机与配件》2024年第23期38-40,共3页Internal Combustion Engine & Parts

摘　　要：某型发动机检修时发现TC6钛合金风扇叶片表面局部有聚集白色点状异常特征,将叶片拆解下来进行宏观、微观、金相、能谱等理化检查,对白色点状异常及叶片基体热影响区深度进行分析及白色点状异常的复现,结果表明该白色点状异常为打磨叶片时基体飞溅形成的附着物。通过对钛合金叶片表面附着物的分析及故障叶片的返修,为后续发动机叶片表面异常情况的分析、处理及提升叶片表面质量提供了借鉴意义。During the maintenance of a certain type of engine,it was found that the local surface of TC6 titanium alloy fan blades had the characteristics of clustered white spotty anomalies.The blades were disassembled for physical and chemical inspection including macro,micro,metallographic,energy spectrum,etc.The white spotty anomalies were reproduced.The results show that the white spot anomaly is the attachment formed by the substrate splashing when polishing the blade.Through the analysis of the attachments on the surface of titanium alloy blade and the repair of the faulty blade,it provides a reference for the analysis and treatment of the abnormal situation of the improvement of the blade surface quality.

关 键 词：点状异常 附着物 钛合金叶片 理化检测 化学成分 

分 类 号：V263.6[航空宇航科学与技术—航空宇航制造工程]