| 摘要 |
PURPOSE:To provide a repairing method where through damages due to the propagation of cracking caused in a structure and equipment can be prevented, and subsequent cracking are difficult to be caused in the repaired part. CONSTITUTION:In a repairing method of a structure 1 where crack-shaped defects are present, the first process where the thermal energy is applied in the region 3 in which defects of the structure 1 are caused and the region is solidified after it is melted, and the second process where the thermal energy is given in the surface part of the region 3, and after the surface part 6 of the region 3 is re-melted, the re-melted part is solidified at the cooling speed to form the dendrite of >=0.1mum to <=3.0mum in size are provided. This constitution repairs the defects, and at the same time, prevents the stress corrosion cracking sensitivity of the repaired part from being increased, and prevents the stress corrosion cracking from being caused by the secular deterioration after repairing. |
