Radiographic Testing
Radiographic testing is an imaging inspection method where ionizing radiation passes through a component and is imaged on a detector. This reveals internal volumetric defects and gives contrast based on density differences.
Physical-Chemical Mechanism
Radiographic testing uses ionizing radiation such as X-rays or gamma rays. These rays pass through the material and are attenuated depending on the material's density. The attenuated radiation is imaged on a detector, resulting in contrast imaging.
Metallurgical Relevance & Welding Risks
Radiographic testing is especially important for metals and materials with complex internal defects. It can make visible the smallest flaws or discontinuities that other inspection methods might miss. A missing or defective image can lead to misinterpretation and wrong conclusions about component quality.
Workshop Practice & Operating Instructions
For successful radiographic testing, it is important that the inspection equipment is properly calibrated and the radiation intensity is optimally set. Components should be clean and free of dust to get a clear image. For complex components or when special materials are used, it is advisable to consult the manufacturer or a radiographic testing specialist.