| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of accurately estimating the working temperature of a member.SOLUTION: The estimation method of working temperature of a member includes: a measurement process of using, in a preset temperature range, a member for grain size measurement that is made of a Ni-based alloy or austenitic steel and has a fine grain composition on its surface, and then measuring the grain size Dof the fine grain composition of the member for grain size measurement; and an estimation process of estimating the actual temperature T at which the member for grain size measurement is used on the basis of the correspondence among the previously measured grain size D of the fine grain composition, temperature T, and time t, the actual using time t1 of the member for grain size measurement, and the grain size Dmeasured in the measurement process.SELECTED DRAWING: Figure 3 |
