Solidified Structure Control of Metallic Materials by Static High Magnetic Fields

Wang, Qiang; Liu, Tie; Wang, Kai; Wang, Changjiu; Nakajima, Keiji; He, Jicheng

doi:10.2355/isijinternational.50.1941

Cited by 17 publications

(5 citation statements)

References 62 publications

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“…In early research, it has been found that migration and separation of primary phase during solidification of a liquid metal can be induced corresponding to the magnetic Faraday force, for example, primary Si in Al–Si alloys Segregation of primary phase had been observed and gradient metallic materials could be prepared by using the magnetic Faraday force . When solid particles/inclusion exist in the liquid metal, electromagnetic Archimedes force is applied to the solid particles:

f_{normalP}^{E A} = - \frac{3}{2} \frac{σ_{normalM} - σ_{normalP}}{2 σ_{normalM} + σ_{normalP}} J \times B

where

f_{normalP}^{E A}

is the force density,

{σ_{M}}_{}

and

σ_{normalP}

are the electrical conductivity of the liquid metal and the non‐conductive inclusion, respectively.…”

Section: Electromagnetic Field Effectsmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic Field Assisted Metallic Materials Processing: A Review

Zhao¹,

Chai²,

Zheng³

et al. 2016

steel research int.

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Electromagnetic fields have been widely applied in the field of materials processing, preparation, and analysis. The effectiveness during such processing is, however, highly dependent on the physics of the applied electromagnetic field as well as the electromagnetic responses from the materials. In order to improve the efficiency of electromagnetic field processing, understanding the fundamentals as well as the engineering of the corresponding electromagnetic effects is crucial. Focusing on metallic materials, this research gives a critical overview and discussion on different electromagnetic effects. Subsequently, the electromagnetic responses in different electromagnetic technologies are further discussed. Specifically, the industrial application potential for inclusion removal from liquid metals is evaluated and the energy coefficient is noticed to be substantially improved by increasing the magnetic flux density.

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f_{normalP}^{E A} = - \frac{3}{2} \frac{σ_{normalM} - σ_{normalP}}{2 σ_{normalM} + σ_{normalP}} J \times B

where

f_{normalP}^{E A}

is the force density,

{σ_{M}}_{}

and

σ_{normalP}

are the electrical conductivity of the liquid metal and the non‐conductive inclusion, respectively.…”

Section: Electromagnetic Field Effectsmentioning

confidence: 99%

“…The application of some EM fields in industry has been well established, ranging from EMBR, induction heating, cold crucible etc . One of the important aspects for the engineering of electromagnetic fields is for clean metals production.…”

Section: Industrial Application Potential – a Specific Case Analysis mentioning

confidence: 99%

Electromagnetic Field Assisted Metallic Materials Processing: A Review

Zhao¹,

Chai²,

Zheng³

et al. 2016

steel research int.

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show abstract

“…[3] In recent years, high magnetic fields have been applied in materials processing, especially in solidification, as a non-contact method to more precisely control the material microstructure. [4][5][6][7] It has been found that the microstructure is strongly dependent on the migration behaviors of solutes and particles (or particle-like phases), so a comprehensive understanding of the evolution of the migration behaviors of solutes and particles during solidification processes in high magnetic fields is essential for the prediction and control of the final microstructures and properties of materials. [8] Several studies have investigated the effects of high magnetic fields on migrations of solutes and particles in alloy melts during solidification [9][10][11] and some research has specifically been directed to the effects of high-gradient magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

High-gradient magnetic field-controlled migration of solutes and particles and their effects on solidification microstructure: A review

et al. 2018

Self Cite

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We present a review of the principal developments in the evolution and synergism of solute and particle migration in a liquid melt in high-gradient magnetic fields and we also describe their effects on the solidification microstructure of alloys. Diverse areas relevant to various aspects of theory and applications of high-gradient magnetic field-controlled migration of solutes and particles are surveyed. They include introduction, high-gradient magnetic field effects, migration behavior of solute and particles in high-gradient magnetic fields, microstructure evolution induced by high-gradient magnetic fieldcontrolled migrations of solute and particles, and properties of materials modified by high-gradient magnetic field-tailored microstructure. Selected examples of binary and multiphase alloy systems are presented and examined, with the main focus on the correlation between the high-gradient magnetic field-modified migration and the related solidification microstructure evolution. Particular attention is given to the mechanisms responsible for the microstructure evolution induced by highgradient magnetic fields.

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“…Focused efforts on exploring magnetic field effects have suggested that magnetic fields could change fluid flow, phase equilibrium, and crystal orientation in terms of the Lorentz and magnetic force and magnetization [1]. There then arises the possibility of in situ controlling the solidification process by magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Effects of a High Magnetic Field on the Solidification Behavior of Binary Al-Si and Ag-Cu Systems

Liu

Wang

et al. 2011

AMR

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To investigate the effect of high magnetic fields on the solidification behavior of binary eutectic system, solidification and quenching experiments of Al-11.8 wt.%Si and Ag-10 wt.%Cu alloys were carried out with and without an 8.8 T high magnetic field. It was found that the application of the high magnetic field could increase the concentration of Si in the primary Al and Cu in the primary Ag at their eutectic temperatures, but could not obviously affect the Si concentration in the primary Al at room temperature. The above increase can be attributed to the weakness of the solute diffusion at the liquid-solid interface during solidification caused by the high magnetic field.

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Solidified Structure Control of Metallic Materials by Static High Magnetic Fields

Cited by 17 publications

References 62 publications

Electromagnetic Field Assisted Metallic Materials Processing: A Review

Electromagnetic Field Assisted Metallic Materials Processing: A Review

High-gradient magnetic field-controlled migration of solutes and particles and their effects on solidification microstructure: A review

Effects of a High Magnetic Field on the Solidification Behavior of Binary Al-Si and Ag-Cu Systems

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