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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Non-destructive scanning for applied stress by the continuous magnetic Barkhausen noise method

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Author(s):
Franco Grijalba, Freddy A. [1] ; Padovese, L. R. [2]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, Fac Mech Engn, Rua Mendeleyev 200, BR-13083860 Campinas, SP - Brazil
[2] Univ Sao Paulo, Polytech Sch, Dept Mech Engn, Av Prof Mello Moraes 2231, BR-05508900 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Magnetism and Magnetic Materials; v. 446, p. 231-238, JAN 15 2018.
Web of Science Citations: 5
Abstract

This paper reports the use of a non-destructive continuous magnetic Barkhausen noise technique to detect applied stress on steel surfaces. The stress profile generated in a sample of 1070 steel subjected to a three-point bending test is analyzed. The influence of different parameters such as pickup coil type, scanner speed, applied magnetic field and frequency band analyzed on the effectiveness of the technique is investigated. A moving smoothing window based on a second-order statistical moment is used to analyze the time signal. The findings show that the technique can be used to detect applied stress profiles. (C) 2017 Elsevier B.V. All rights reserved. (AU)