Which Technique a NDT expert will use to find debonding of 2mm aluminum sheets?

GPS Agencies Ltd;ivoryalternative.com

For the thickness of 2 important to the X Ray.ultrasound test Depending on the situation

Ressuage

He can use guided wave ultrasonic methode.

Best Regards

Ayman

here ultrasonic testing should be implemented, depending upon the sheet dimesnsions and apparatus available, Phase-Array or guided wave can be utilized.

It depends on bonding with which material. 

For metal Ultrasonic will be the best technique for tesing for tesing debonding, but then Thickness of Al plate is very low i.e.2 mm.