Metal magnetic memory signal response to plastic deformation of low carbon steel

Leng, Jinsong; Liu, Yang; Zhang, Guoqiang; Gao, Yatian

doi:10.1016/j.ndteint.2013.01.005

Cited by 88 publications

(39 citation statements)

References 24 publications

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“…14 The magnetic memory signals when online unloading show a large difference even at only 0?5% elongation and a gradual change afterwards, which have the same variation trend as the simulation results in Fig. 5.…”

Section: Resultssupporting

confidence: 73%

See 1 more Smart Citation

Modelling dependence of magnetic memory effect on plastic deformation in ferromagnetic materials

Leng¹,

Li²,

Gao³

et al. 2014

Materials Science and Technology

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A magnetic model has been proposed that describes the effects of plastic deformation on magnetisation based on the theory of magneto-mechanical effect. In the current model correlating the magnetisation with the effective field, the influences of plastic strain on the model parameters and the effective field are taken into account respectively due to the difference between elastic and plastic deformation. Meanwhile, the effective fields under loading and unloading conditions are differentiated attributing to the effects of the applied stress and residual stress on domain wall motion. The computed magnetization shows a sharp change at a rather small plastic deformation even at only 0?5% elongation but subsequently a slow decrease with increasing tension, which is in good agreement with previous experimental results. Different magnetic signal characteristics in the plastic deformation region indicate that metal magnetic memory technique could be used to characterize early damage.

show abstract

Section: Resultssupporting

confidence: 73%

“…The magnetic signals from a flat plate specimen made of Q235 low carbon steel were simulated for various plastic strain levels using the following values for the model parameters: 14 It can be seen from the plots that the plastic strains produce similar effects on the anhysteretic magnetizations when loading and after unloading.…”

Section: Resultsmentioning

confidence: 99%

Modelling dependence of magnetic memory effect on plastic deformation in ferromagnetic materials

Leng¹,

Li²,

Gao³

et al. 2014

Materials Science and Technology

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show abstract

“…Thus, this sensor can have potential applications to detect magnetic field with resolutions close to microTeslas. For instance, applications related with non-destructive magnetic testing for monitoring geometrical defects and corrosion of ferromagnetic materials [32]. However, this sensor needs an external circuit of temperature compensation to reduce the electrical offset and the variation of electrical response of the sensor with respect to the temperature.…”

Section: Resultsmentioning

confidence: 99%

A MEMS-based magnetic field sensor with simple resonant structure and linear electrical response

Herrera-May

Lara-Castro

López-Huerta

et al. 2015

Microelectronic Engineering

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“…However, the current research on the mechanism of magnetic memory effect of stress is far from conclusive [6][7][8][9]. The magnetic memory mechanism and signal characteristics are explained from different perspectives by a lot of researches, but there is no definite conclusion on them [10][11][12][13][14]. So the study on the mechanism of stress-magnetism coupling of ferromagnetic material and the characteristics of magnetic memory effect has aroused more and more concerns in many countries [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The Magnetic Memory Effect of Ferromagnetic Materials in the Process of Stress-Magnetism Coupling

Wang

Peng

Wei

et al. 2017

Advances in Materials Science and Engineering

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Ferromagnetic materials can produce the magnetic memory effect under stress. This provides a practical method to measure stress concentration. The relation between stress and magnetic characteristic is analyzed through energy balance theory. Forcemagnetism coupling process of Fe-C crystal system is simulated by CASTEP software which is based on first principle. Electron band structure, electron density of states, and atomic magnetic moment in the process of force-magnetism coupling process are calculated. Experimental investigation of the magnetic memory effect of ferromagnetic material under different stresses has been undertaken in X52 pipeline. The results show that the magnetic characteristic of ferromagnetic material weakens under stress, and the magnetic memory signals intensity linearly decreases with the increasing stress. When material yields, the variation character of magnetic memory signals suddenly changes and the inflection points of the stress-B curves emerge. Experimental investigation is in agreement with the theoretical analysis.

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Metal magnetic memory signal response to plastic deformation of low carbon steel

Cited by 88 publications

References 24 publications

Modelling dependence of magnetic memory effect on plastic deformation in ferromagnetic materials

Modelling dependence of magnetic memory effect on plastic deformation in ferromagnetic materials

A MEMS-based magnetic field sensor with simple resonant structure and linear electrical response

The Magnetic Memory Effect of Ferromagnetic Materials in the Process of Stress-Magnetism Coupling

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