Abstract
In this paper, we theoretically investigated stress-induced magnetic anisotropy and presented a model based on a unidirectional tensile stress experiment. Firstly, the theoretical model was simulated based on the work of Jiles. Secondly, experiments were conducted, and data under unidirectional tensile stress were collected and analyzed. Finally, the model was developed by correlating the experimental data and theoretical model. Our model provides a good description of stress-induced magnetic anisotropy under unidirectional tensile stresses and lays down a foundation for the quantitative testing and evaluation of stress of ferromagnetic materials through the magnetic method.
Highlights
Ferromagnetic steels are widely used in manufacturing the key mechanical components and in petroleum, chemical, mining, and other industries because of their excellent mechanical properties
The proposed theoretical model can predict the magnetic memory (MMM) signals in a complex environment a nonlinear coupled model is proposed to improve the quantitative evaluation of the magnetomechanical effect
A stress-induced magnetic anisotropy model under unidirectional tensile stress was developed by connecting experimental data with the theoretical model
Summary
Ferromagnetic steels are widely used in manufacturing the key mechanical components and in petroleum, chemical, mining, and other industries because of their excellent mechanical properties. The proposed theoretical model can predict the MMM signals in a complex environment a nonlinear coupled model is proposed to improve the quantitative evaluation of the magnetomechanical effect. Yang et al [19] studied the influence of stress and external magnetic field on the residual magnetic field of ferromagnetic steel and found that the direction of the residual magnetic field is affected by the combined action of stress and external magnetic field They reconstructed the magnetization inside the structure by using surface magnetic field signals and found that stress-induced magnetization under geomagnetic field is directed along the stress and the intensity of the stress-induced magnetization is linearly related to the applied stress [20]–[22]. New model was developed by comparing the experimental data with the theoretical model
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