Investigation on transverse defect and cavitation depth in ferrous pipe using melt spun FeSiB ribbon as magnetostrictive sensing element. (June 2016)

• Record Type: Journal Article
• Authors: Panda, A.K.; James, Ajil P.; Mohan, Aneesh; Dey, Sushmita; Roy, R.K.; Mitra, A.
• Is Part Of: NDT & E international. Volume 80(2016)
• Page Start: 15
• Page End: 22
• Publication Date: 2016-06
• Subjects: Rapidly quenched ribbons -- Magnetostrictive sensor -- Reflection coefficient -- Transverse defect -- Pit defect; Nondestructive testing -- Periodicals; Contrôle non destructif -- Périodiques; Electronic journals; 620.1127
• DOI: 10.1016/j.ndteint.2016.02.002
• Languages: English
• ISSNs: 0963-8695

Abstract

Abstract: The investigation addresses the scope of rapidly quenched Fe80 Si8 B12 ribbons as magnetostrictive sensor (MsS) material to generate guided waves in galvanised iron pipe and evaluation of defects with different geometries and dimensions. Enhancement in the effective defect size (EDS) of transverse and pit type defects increased the MsS signal. However, the backwall echo showed opposing trend (transverse: reduced and pit: increased) with increase in dimensions of these defects. Such behaviour of backwall intensities has been correlated to different type of guided wave strain field distributions around these defects and reflection coefficients.