ASTM E2929-18
- Standard Practice for Guided Wave Testing of Above Ground Steel Piping with Magnetostrictive Transduction
- standard by ASTM International, 06/01/2018
- Category: ASTM
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1.1 This practice provides a guide for the use of waves generated using magnetostrictive transduction for guided wave testing (GWT) welded tubulars. Magnetostrictive materials transduce or convert time varying magnetic fields into mechanical energy. As a magnetostrictive material is magnetized, it strains. Conversely, if an external force produces a strain in a magnetostrictive material, the material's magnetic state will change. This bi-directional coupling between the magnetic and mechanical states of a magnetostrictive material provides a transduction capability that can be used for both actuation and sensing devices.
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