Nondestructive Testing Techniques for the Wall of Tank in Service

Nondestructive testing(NDT) techniques used in the wall of tank in service were reviewed including ultrasonic, radiographic, magnetic particle, acoustic emission, infrared, magnetic flux leakage and magnetic memory techniques. The applications of these methods were also introduced. By analyzing the advantages and disadvantages of these methods, the authors suggested that diverse NDT methods should be combined to accomplish full inspection for the wall of tank in service.