Document Type
Conference Paper
Rights
This item is available under a Creative Commons License for non-commercial use only
Disciplines
Optics
Abstract
Thermal sprayed coatings have wide engineering applications. There now exists a wide range of destructive and nondestructive testing (NDT) methods for surface coating inspections. This paper describes an application of Electronic Speckle Pattern Shearing Interferometry (ESPSI) for NDT of thermal sprayed surface coatings. In contrast to other conventional methods such as eddy current, ultrasonic or X-ray, ESPSI allows fast and large survey area inspection. Experimental results of shearographic measurements are presented. Thermal sprayed coatings were tested using ESPSI. Delaminations of the coatings were detected and the fringe patterns were captured using this method. It is shown that the shearography technique can be applied successfully to surface coating quality inspection and it is very effective for delamination detection.
Recommended Citation
Yueqiang X, Kennedy, D., Mihaylova, E.: Electronic Speckle Pattern Shearing Interferometry for Nondestructive Testing of Thermal Sprayed Alloy Coatings. Proceedings of SPIE: OPTO-IRELAND 5824, 241 (2005); doi:10.1117/12.605034
Publication Details
Proceedings of SPIE: OPTO-IRELAND 5824, 241 (2005); doi:10.1117/12.605034