PWR Safety Research Programme - Final Report on Ultrasonic Technique Developments for the Threaded-Hole Region in the Reactor Pressure Vessel Flange

摘要

This Report reviews the work carried out on the development of an automated ultrasonic inspection technique for the detection and sizing of flaws in the threaded-hole region of a PWR reactor pressure vessel (RPV) flange. The work has been taken to the stage of producing a laboratory prototype inspection device operating in conjunction with a computer-based data gathering system. Evaluation of the technique has been carried out on a range of artificial flaws in representative threaded-hole samples. (ERA citation 13:024393)