Modeling plastic deformation effect on magnetization in ferromagnetic materials

Abstract

Effect of plastic strain on magnetic and mechanical properties of ultralow carbon sheet steel

Modeling Hysteresis Loops of Self-Developed Soft Magnetic Composite Cores Using the Jiles-Atherton-Sablik Theory

“…Some of the less common applications include modeling of transient states in electrical grids related to inrush phenomena [15] or calculations of shielding factors [16]. The Jiles-Atherton model including the magnetoelastic term is usually applied for the description of magnetization processes in steels [6][7][8][17][18][19][20][21][22][23]. Papers devoted to other materials of practical importance like amorphous alloys [24] are less common.…”

“…The paper [19] included an in-depth analysis of the relationships between strain-hardening stress and micro-structural quantities such as dislocation density and some values of JA model parameters. In a subsequent study Jianwei Li et al [20] suggested that yet another term representing the contribution due to residual stresses in the expression for the effective field should be accounted. Jiancheng Leng et al…”

Discussion of modified Jiles-Atherton model including dislocations and plastic strain

“…Wang [19] considered the magnetization inhibition caused by the pinning sites as a demagnetizing field, and the demagnetizing field is H p = −k |ε p |, where ε p is the plastic strain, and k is the pinning constant. Li [30] considered both H σr and H p , and found that H σr H p . This means that, the effect on the magnetization of the residual stress is much smaller than that of the dislocations.…”

A Simplified Sablik’s Approach to Model the Effect of Compaction Pressure on the Shape of Hysteresis Loops in Soft Magnetic Composite Cores

“…Description of magnetomechanical coupling is one of the most important application targets [23]. The Jiles-Atherton model including the magnetoelastic term is usually applied for the description of magnetization processes in steels [15][16][17][24][25][26][27][28][29][30]. Papers devoted to other materials of practical importance like amorphous and nanocrystalline alloys [31,32] or ferrites [33] are less common.…”

“…The paper [26] included an in-depth analysis of the relationships between strain-hardening stress and micro-structural quantities such as dislocation density and some values of JA model parameters. In a subsequent study Jianwei Li et al [27] suggested that yet another term representing the contribution due to residual stresses in the expression for the effective field should be accounted. Jiancheng Leng et al used the Jiles-Atherton-Sablik (JAS) model to explain variations of magnetic memory signals caused by early stages of plastic deformation [28].…”