RESTORATION HEAT-TREATMENT METHOD FOR CREEP-DAMAGED HEAT-RESISTANT METAL MEMBER

摘要

Heat-resistant metal material member is covered and fixed by a heat-resistant metal covering member so as to contact the outer periphery of the heat-resistant metal material member in which creep damage has occurred, and the heat-resistant metal material member covered with the heat- The thermal expansion of the heat resistant metal material member in the direction toward the outer periphery is controlled by the compressive force acting on the heat resistant metal material member which is thermally expanded in the direction of the thermal expansion coefficient of the heat resistant metal material member and the regenerated heat treatment method of the heat resistant metal material member in which creep damage occurs is efficiently performed .