The technique proved effective when it was used in rapid crack testing and crack depth measuring of steam turbine metal parts such as joint face of hig...

• 将其应用于发电厂汽轮机金属部件如高、中压缸结合面以及汽轮机叶片的表面和近表面裂纹快速扫查和测深,取得了一定效果。