| 摘要 |
A creep-damaged heat-resistant metal member is covered by a heat-resistant cover member and secured such that the heat-resistant cover member is in contact with an outer periphery of the heat-resistant metal member, and the heat-resistant metal member covered by the heat-resistant cover member is heated to a temperature of at least 1000˚C. As a result, a compressive force acts upon the heat-resistant metal member which thermally expands in a direction towards the outer periphery, the thermal expansion of the heat-resistant metal member in the direction towards the outer periphery is restrained, and efficient restoration heat treatment of the creep-damaged heat-resistant metal member is rendered possible. |
