A Study on the Outfield Application of Nondestructive Testing Technologies for Stealth Coating

The internal debonding occurring in the inlet stealth coating in use will cause the coating to peel off, thereby seriously impacting the overall stealth performance of an aircraft. In order to address this problem, this paper has introduced the nondestructive testing technologies that apply to the detection of the internal debonding defect in stealth coating. Additionally, experiments with infrared thermal imaging and phased array ultrasonic testing technologies and equipment have been carried out in this paper, which will facilitate the real-time testing and maintenance of the stealth coating in service.