Influence of crystallographic orientation and applied magnetic field on domain structure in duplex stainless steel studied using magnetic force microscopy

Abuthahir, J.; Kumar, Anish; Shankar, Vani

doi:10.1016/j.matchar.2018.07.032

Cited by 2 publications

(1 citation statement)

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“…From a microscopic point of view, knowledge of the magnetic domain behavior under mechanical loading gives unrivaled insight into the overall macroscopic magnetic characteristics and the origin of magneto-mechanical mechanisms. In addition, measurements of domain wall (DW) behavior have an increasing span of applications with capabilities of relatively high spatial resolution measurements of stress statuses in materials [9][10][11][12]. Due to the progress in magnetic domain observation techniques [13][14][15], magnetic microstructure changes in magnetic materials under different external conditions are widely studied [11,12,[16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Influence of magnetic domain wall orientation on Barkhausen noise and magneto-mechanical behavior in electrical steel

Qiu

Jovičević‐Klug

Tian

et al. 2019

J. Phys. D: Appl. Phys.

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We investigate the influence of magnetic domain configurations on the magnetic Barkhausen noise (MBN) and magneto-mechanical behavior of electrical steel. Micro-macro magnetic properties from individual crystallographic grains with different domain wall (DW) orientations under different tensile stresses are measured. We show a strong dependency of the MBN activity and magneto-mechanical behavior on the DW orientation. Time evolution and statics of magnetic domain states are elaborated for the analysis of the magnetization processes, revealing an interaction between the stress-induced demagnetizing effect, the magneto-elastic behavior and the DW dynamics. The variation of supplementary domains under tensile stress is directly connected to the demagnetizing effect, further affecting the MBN activity. In addition, the influence of magnetic domain configurations in the neighboring grains on the DW dynamics and MBN jumps is studied. From this, the dipolar-dipolar and intergranular magnetic coupling interactions are derived. The results provide substantial microscopic insight for MBN and magneto-mechanical behavior analysis.

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