摘要
通过在汽轮机叶轮键槽模拟试块上的试验 ,探索超声波波束R圆角上最大反射波幅与相应裂纹上的最大反射波幅之间的数量关系 ,并建立起相应的数学模式 。
Through the simulated turbine vane wheel keyway the relation between the highest amplitude on the R round corner and the cracks is probed into;the corresponding mathematics mode is established,in order to find a good way for ultrasonic test of vane wheel keyway.
关键词
汽轮机
叶轮
键槽
裂纹
超声波检测
turbine vane wheel
keyway
crack
ultrasonic test
