Deterioration diagnostic methods, equipment and systems for nickel-based superalloys

摘要

PROBLEM TO BE SOLVED: To provide a deterioration diagnosis method, apparatus and system for a metal sample in a single crystal state, which can identify deterioration of a crystal structure in a specific direction without any special work and can be easily used by a general user. A method for diagnosing deterioration of a metal sample S0 composed of a single crystal state, wherein the metal sample S0 is irradiated with white X-rays and a diffraction spot SP1 generated by the irradiation is detected by a detector 140. A step of calculating a coefficient related to the dispersion of the intensity distribution in the specific direction in the detected diffraction spot SP1 and a step of specifying the deterioration state of the metal sample S0 from the calculated coefficient are included. In this way, since the distortion of the array can be specified by using the diffraction spot SP1 of the metal sample S0 in the single crystal state using white X-rays, it is not necessary to perform a difficult work such as angle adjustment using a 4-axis goniometer. , Even general users can easily diagnose deterioration. [Selection diagram] Fig. 2