- magnetic particle testing (MT)
The magnetic particle method is used to check the quality of ferromagnetic materials. Its purpose is to detect surface or subsurface discontinuities. In most cases, it is necessary to demagnetize the part.
Penetrant testing is a relatively simple method that detects surface discontinuities. It’s used for testing porous materials.
This method is used to test both magnetic and non-magnetic materials—discontinuities close to the surface of reaching the surface—to compare them and detect possible changes in the thickness of the protective layers.
- radiological examinations (RT)
Radiological examination is extremely effective when it comes to detecting internal incompatibilities. Although it is expensive, it allows large areas to be examined simultaneously.
This is one of the most effective methods to detect internal planar discontinuities. Unfortunately, when examining large structures, this method involves significant costs due to the need to search one place after another.
It is one of the simplest and most comprehensive diagnostic methods. Unfortunately, in this case the obtained result is often ambiguous.