Main methods
Non-destructive testing

The most commonly used non-destructive testing methods can be classified into two main families, depending on the type of anomaly sought in the part.

The surface methods (anomalies on the outer surface) are as follows:

• visual inspection ;

• bleeding ;

• magnetoscopy ;

• eddy currents.

Volumetric methods (anomalies within the room) are as follows:

• ultrasound ;

• ionizing radiation.

Other methods exist, which have the advantage of being global and real-time. These include :

• thermography ;

• acoustic emission.

This list of methods is far from exhaustive. We could also mention sealing, whose complexity can vary greatly depending on the type and importance of the anomalies sought, or...