航空发动机涡轮叶片相控阵超声检测研究

摘要

超声波无损检测技术(UNT)是航空工件检测中应用较多的一种检测方法.本文对航空发动机涡轮叶片进行了超声波无损检测；传统检测是用反射波形和波幅特征分析检测出发动机涡轮叶片缺陷；相控阵超声检测(PAUT)是利用相位延迟达到相控效果,形成清晰的图像,和传统超声波检测相比,更能直观的显示缺陷的位置和形状.%Ultrasonic Nondestructive Testing (UNT) is widely used in aviation component test .This paper adopts UNT in aero-engine turbine blade .Traditional detection uses reflection waveform and amplitude characteristic to check out flaw in engine turbine blade . Phased Array Ultrasonic nondestructive Testing (PAUT) takes advantage of phased delay to obtain phased effect and product clear image .Comparing with traditional ultrasonic detection, PAUT shows position and sharp of flaw more directly.