抄録
In this study, capability and reliability of advanced repairing technology based upon thermal spraying technique were examined. In order to achieve this purpose, the damage evolution progressed in the repaired part was clarified through continuous observation under tensile loading, and residual stress and the critical strain up to the delamination in the part were identified. For the tensile testing, the repairing geometry was assumed to be five types of the length under the same depth. As the results, residual stress increases to compressive side with the normalized repaired length, and the critical strain also increases with the length, which means that it is desirable to remove a large region from the damage part in the structure. It can be claimed that APS repairing technique has great capability in place of a traditional welding approach.
