UWMT Applications - Underwater magnetic particle testing is used primarily as a quality assurance tool to support underwater welding on ship structures. It can also be used to inspect hulls or other magnetic components for surface discontinuities such as cracks and lack of fusion in welds. UWMT can be used to define the true length (and locate the true ends) of discontinuities detected visually and to help determine where corrective measures (e.g., stop drilling) should be applied.
{"Image DocumentName": "UWMT Applications - Underwater magnetic particle testing is used primarily as a quality assurance tool to support underwater welding on ship structures. It can also be used to inspect hulls or other magnetic components for surface discontinuities such as cracks and lack of fusion in welds. UWMT can be used to define the true length (and locate the true ends) of discontinuities detected visually and to help determine where corrective measures (e.g., stop drilling) should be applied.", "Image ImageDescription": "UWMT Limitations. (1) Underwater magnetic particle testing has limited subsurface capability. It is considered to be strictly a method for detecting and measuring surface discontinuities. It is not an approved method for detection of subsurface discontinuities. (2) The adequacy of inspection with UWMT (as with most nondestructive test methods) is largely a function of the operator\u2019s knowledge and skill. Inspections with UWMT are to be performed only by personnel trained and specifically certified in UWMT. (3) UWMT is limited to ferromagnetic materials, which include most steels. For most applications, a simple check with a magnet is sufficient to determine suitability for UWMT.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}