| 摘要 |
A method for evaluating a residual fatigue life of mechanical parts, consisting of the steps of grinding a surface layer of a mechanical part to be inspected by a minute amount to form an inspection surface, seeking for half-width data of an X-ray diffraction intensity curve on the inspection surface, seeking for a depth (do) of a defective region from a graph of a half-width ratio (H/Ho) versus a depth (d) from a surface, and determining an amount of fatigue defect on the basis of data of the depth (do) of the defective region versus an amount of fatigue defect (D) which were separately obtained from a test piece. |
