Speaker
Description
Full penetration welding and 100% volumetric examination are required for all welds of pressure retaining parts of the CFETR(China Fusion Engineering Test Reactor) Vacuum Vessel (VV) according to the design manual. But not every welding joint can be tested with RT due to the structure and welding position. Therefore the ultrasonic testing (UT) has been selected as an alternative method.
Considering the misjudgment and undetectable in the austenitic stainless steel welding by the traditional ultrasonic testing method, this paper introduce the application of PAUT(phase-array ultrasonic technique) in the CFETR VV R&D. Base on the ultrasonic simulation and dynamic focus, the precision of the defect position and the signal/noise(S/N) can be improved. The PAUT show excellent detectability and applicability for the austenitic stainless steel weld in the CFETR VV.
| Eligible for student paper award? | Yes |
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