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Introduction To Electrodynamics

Micro-macro characteristics between domain wall motion and magnetic Barkhausen noise under tensile stress

Non-destructive monitoring of corrosion extent in steel rope wires via Barkhausen noise emission

Non-destructive evaluation of the railway wheel surface damage after long-term operation via Barkhausen noise technique

Barkhausen noise emission in tool steel X210Cr12 after semi-solid processing

Microstructural transformation of a rail surface induced by severe thermoplastic deformation and its non-destructive monitoring via Barkhausen noise

This paper reports about influence of sample thickness and magnetizing voltage on the Barkhausen noise emission during bending as well as uniaxial tensile tests. This study demonstrates that the Barkhausen noise in the tensile stress loading for the low sample thickness and low magnetizing voltage decreases. Such behaviour is considered to be a result of predominating stress anisotropy whereas the crystal anisotropy influence is only minor (or missing). For this reason, the conventional effective value of the Barkhausen noise signal cannot be employed for non-destructive monitoring of stress state in such a case and the magnitude of exerted stresses should be calibrated the width of the Barkhausen noise envelope. It was also found that the sample thickness as well as the manner of exerted loading also play significant roles since the Barkhausen noise tends to increase with increasing tensile stresses, especially for the higher magnetizing fields.

/pdf/influence-of-sample-size-and-magnetizing-voltage-on-5dw9yps0as.pdf

Influence of Sample Size and Magnetizing Voltage on Barkhausen Noise during Bending and Uniaxial Tensile Tests

Analysis of Structure Transformations in Rail Surface Induced by Plastic Deformation via Barkhausen Noise Emission M. Neslušana,∗, K. Zgútová, K. Kolařík, J. Šramek, J. Čapek Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, 01026 Žilina, Slovakia Faculty of Civil Engineering, University of Žilina, Univerzitná 1, 01026 Žilina, Slovakia Faculty of Nuclear Science and Physical Engineering, ČVUT Praha, Trojanova 13, 12000 Praha, Czech Republic

/pdf/analysis-of-structure-transformations-in-rail-surface-49n2fj4c7n.pdf

J. Šramek

Papers

Microstructural transformation of a rail surface induced by severe thermoplastic deformation and its non-destructive monitoring via Barkhausen noise

Influence of Sample Size and Magnetizing Voltage on Barkhausen Noise during Bending and Uniaxial Tensile Tests

Analysis of Structure Transformations in Rail Surface Induced by Plastic Deformation via Barkhausen Noise Emission