... cracks made on the back surface by electric discharge machining. Geometrical parameters of the crack were evaluated by the proposed method. The result of identification was successful and it was clarified that the semi-elliptical crack on the back surface can be identified nondestructively by dc-PDM...

... discharge machining fission reactor materials eddy current examination fatigue crack Inconel weld reconstruction Various cracking phenomena have been reported in nuclear power plants in recent years. One major cracking occurred in nickel alloy welded joints (Inconel welds), such as nozzle...