汽轮机叶片叶身超声导波检测技术研究  

The Research on Ultrasonic Guided Wave Technology Applied in Blade Body

作　　者：靳峰[1] 汪毅[1] 李世涛[1] 张武能[1] 

机构地区：[1]河南省电力公司电力科学研究院,郑州450052

出　　处：《汽轮机技术》2013年第6期427-430,共4页Turbine Technology

摘　　要：通过对平板超声导波传播特性的分析,选定用于叶片叶身缺陷检测的导波模式,拟定导波检测的参数。采用实际使用的叶片制作试样,对试样上不同位置的缺陷在不同距离进行测试,试验结果表明导波检测具有很高的灵敏度,能实现叶片叶身的全长度一次检测。通过对电站机组汽轮机叶片叶身现场检测应用,证明该方法实用性良好。This article selects the model to ultrasonic guided wave of test blade body and studies out test parameters of guided wave, by studying the transmission feature of guided wave in board. Also, test piece of real blade is made, and defect in different positions is tested in different distance, the results show that ultrasonic guided wave technology have very good sensitivity, and can test the total blade at once. By testing the real blade, the practicability of method has been verified.

关 键 词：叶片叶身 超声导波 检测 

分 类 号：TG141[一般工业技术—材料科学与工程]