Title :
The effect of stress and magnetic field orientation on surface Barkhausen noise in pipeline steel
Author :
Jagadish, Chennupati ; Clapham, Lynann ; Atherton, David L.
Author_Institution :
Dept. of Phys., Queen´´s Univ., Kingston, Ont., Canada
fDate :
1/1/1990 12:00:00 AM
Abstract :
Surface Barkhausen noise (SBN) measurements were made on a 2% Mn pipeline steel sample subjected to different levels of applied tensile and compressive isostress. The magnetic field direction was varied through a full 360°. SBN voltage was found to depend on both stress level and magnetic field direction. The results were analyzed in terms of reorientation of magnetic moments from axial to circumferential directions with increasing tension. Compression was found to realign the magnetic moments in the axial direction
Keywords :
Barkhausen effect; alloy steel; ferromagnetic properties of substances; magnetic moments; magnetomechanical effects; axial direction; circumferential directions; compressive isostress; magnetic field direction; magnetic field orientation; magnetic moments; pipeline steel; reorientation; stress level; surface Barkhausen noise; tensile isostress; Compressive stress; Magnetic field measurement; Magnetic moments; Magnetic noise; Noise level; Noise measurement; Pipelines; Steel; Tensile stress; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
