AE can be used for the in-service inspection of pressure vessels to detect cracks that have resulted from any form of deterioration during service that…
Category: In-Service Inspection
Acoustic emission tests of a pressure vessel are usually conducted by filling the vessel with water, and slowly increasing the hydrostatic pressure until it exceeds…
It is sometimes thought that RT is the best NDE method that can be used for detecting flaws, because it is mandated by the ASME…
The acceptability of a radiograph for the detection of flaws is determined with a device, referred to as a “penetrameter,” that is placed upon the…
The exposure of the photographic film by radiation passing through the workpiece is determined by the intensity of the radiation multiplied by the time of…
The radiation which passes through the workpiece is recorded by photographic film. The radiographs are usually interpreted visually with the aid of a high intensity…
Both x-rays and gamma rays can be used as the incident radiation. Energy and intensity are the most important characteristics of the incident radiation. The…
X-rays and gamma rays penetrate steel, but the intensity of the incident radiation will be attenuated as it passes through the material. The degree of…
RT is very useful for detecting both surface and internal flaws, and it is the primary NDE procedure required by the ASME Code to verify…
UT is a very efficient NDE method. A large amount of data for evaluating the integrity and reliability of a vessel can be obtained in…