There are six common NDT methods: visual testing, liquid penetrant testing, magnetic particle testing, eddy current testing, radiographic testing, and ultrasonic testing. Each method requires a ...

Non-destructive testing methods are used in industry to evaluate the integrity and properties of material or components without causing damage to the tested object. Aside from industrial radiography, ...

The main tests done on the hydrogen seals are liquid penetrant (LPI) for cracks and other surface damage, and ultrasonic testing (UT) for babbitt bonding to the seal‐ring components. Rotor winding ...