| 摘要 |
PROBLEM TO BE SOLVED: To provide a damage evaluation method of a gas turbine part which enables a reduction of the estimate error of life. SOLUTION: The damage of the gas turbine part is evaluated on the basis of FEM temperature analyzing results by performing a step (a) for transferring the metal texture of the surface of the gas turbine part to a replica using an electrolytic etching method, a step (b) for observing the replica, on which a conductive substance is vapor-deposited by a scanning electron microscope to measure the mean particle size of a precipitate, a step (c) for estimating a metal temperature from the measured mean particle size of the precipitate and a step (d) for analyzing an FEM temperature using the estimate result of the metal temperature and an inverse problem analyzing technique. COPYRIGHT: (C)2006,JPO&NCIPI
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