Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5490118 | Journal of Magnetism and Magnetic Materials | 2017 | 23 Pages |
Abstract
The paper presents a new methodology for detection and evaluation of mild steel (MS) can material embedded into oxide dispersion strengthened (ODS) steel tubes by magnetic Barkhausen emission (MBE) technique. The high frequency MBE measurements (125Â Hz sweep frequency and 70-200Â kHz analyzing frequency) are found to be very sensitive for detection of presence of MS on the surface of the ODS steel tube. However, due to a shallow depth of information from the high frequency MBE measurements, it cannot be used for evaluation of the thickness of the embedded MS. The low frequency MBE measurements (0.5Â Hz sweep frequency and 2-20Â kHz analyzing frequency) indicate presence of two MBE RMS voltage peaks corresponding to the MS and the ODS steel. The ratio of the two peaks changes with the thickness of the MS and hence, can be used for measurement of the thickness of the MS layer.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
G.V.K. Kishore, Anish Kumar, K.V. Rajkumar, B. Purnachandra Rao, Debabrata Pramanik, Komal Kapoor, Sanjay Kumar Jha,