Enhanced Phenomena in Metals with Electric and Magnetic Fields: II Magnetic Fields

Enomoto, Masato

doi:10.2320/matertrans.46.1088

Cited by 20 publications

(10 citation statements)

References 56 publications

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“…Researchers have paid many attentions to reveal the relationship between high magnetic field and the recrystallization behavior of the deformation alloys. Most researches in this field are related to magnetically affected recrystallization in ferromagnetic materials [1][2][3]. With the development of high magnetic field technologies, researchers found that non-ferromagnetic metals which almost have no reaction in the conventional magnetic field heat treatment are also quite sensitive under the high magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Effect of high magnetic field on recrystallization behavior of cold rolled H70 brass

Wang

Zhao

2017

J. Phys.: Conf. Ser.

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Abstract. Effect of high magnetic field annealing on recrystallization behavior of cold rolled H70 brass was investigated. Specimens were annealed with and without a 12T magnetic field at different temperatures, respectively. The results showed that the recrystallization fraction of field-annealed specimen is lower than that of the non-field annealed specimen, while the percentage of ∑3 grain boundaries is higher than that of the non-field annealed specimen. The analysis results indicate that the high magnetic field hinders the recryatallization of cold rolled H70 brass, but promotes the formation of ∑3 grain boundaries. This may attributed to the formation of large number of asymmetric grain boundaries under the high magnetic field decreases the grain boundary migration process which leads to the slower of recrystallization process and makes the special grain boundary have more chance to grow up under the magnetic field. IntroductionIn recent years, the electromagnetic processing technology has been widely used in the solid phase transformation of materials. Researchers have paid many attentions to reveal the relationship between high magnetic field and the recrystallization behavior of the deformation alloys. Most researches in this field are related to magnetically affected recrystallization in ferromagnetic materials [1][2][3]. With the development of high magnetic field technologies, researchers found that non-ferromagnetic metals which almost have no reaction in the conventional magnetic field heat treatment are also quite sensitive under the high magnetic field. In 2003~2010, Molodov and his collaborators [4-9] explored the magnetically affected recrystallization and grain growth in non-ferromagnetic metals, and the results showed that the magnetic annealing can substantially affect the texture and grain structure evolution during recrystallization and grain growth in magnetically aluminum, zinc, titanium and zirconium. In 2008, Sheikh-Ali and his coworkers [10] found that the microhardness of diamagnetic pure copper, after the high magnetic field heat treatment, was higher than the specimen annealed without the magnetic field, they attribute it to the prevention of high magnetic field on the reduction of dislocation density in the specimens. In 2015, He et al [11][12] studied the effect of high magnetic field annealing on the recrystallization texture evolution in cold-rolled pure copper, and they found that the magnetic field annealing promotes the formation of the recrystalliation Cube texture in cold-rolled pure copper sheets. These researches have progressed the understanding of the high magnetic field mechanism on recrystallization in non-ferromagnetic metals. However, till now minimal work has been conducted to study the grain boundary character in non-ferromagnetic metals under the high

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Section: Introductionmentioning

confidence: 99%

Effect of high magnetic field on recrystallization behavior of cold rolled H70 brass

Wang

Zhao

2017

J. Phys.: Conf. Ser.

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“…Watanabe et al [14,15] wrote review papers on grain boundary engineering by magnetic field application and Enomoto [16] published a review paper on the enhancement of phenomena in metals by applying magnetic fields. Several review papers have also been published by the author [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Structural control of Fe-based alloys through diffusional solid/solid phase transformations in a high magnetic field

Ohtsuka

2008

Science and Technology of Advanced Materials

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A magnetic field has a remarkable influence on solid/solid phase transformations and it can be used to control the structure and function of materials during phase transformations. The effects of magnetic fields on diffusional solid/solid phase transformations, mainly from austenite to ferrite, in Fe-based alloys are reviewed. The effects of magnetic fields on the transformation temperature and phase diagram are explained thermodynamically, and the transformation behavior and transformed structures in magnetic fields are discussed.

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“…In this field, much progress has been made regarding textural orientations, phase transformations, solidifications and interfacial reactions (Ajayan and Tour, 2007;Asai et al, 2003;Enomoto, 2005;Wang et al, 2007;Ren et al, 2006;Nakamichi et al, 2005). As we know that many processing techniques, e.g.…”

Section: Introductionmentioning

confidence: 98%

The growth behaviours of IMC layers in solid‐liquid interfacial reactions of Sn1.5Cu/Cu in high magnetic fields

Cheng

Zhao

et al. 2009

Soldering &Amp; Surface Mount Technology

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PurposeThe aim of this paper is to investigate the growth behaviours of intermetallic compound (IMC) layers in solid‐liquid interfacial reactions of Sn1.5Cu/Cu in various intensities of high‐magnetic field.Design/methodology/approachSn1.5Cu solder was prepared and melted in a vacuum furnace at 873 K and cast into solder bars. Samples were mounted using resin and etched after being carefully polished. Then the IMC layers were observed by using scanning electron microscopy.FindingsThe results show that the growth of IMC layers has been accelerated by high‐magnetic field through the comparison of growth kinetics of IMC layers among 0‐2.5 T magnetic filed. IMC grains in high‐magnetic field are much bigger than that in 0 T. By the analyzing of X‐ray diffractometer patterns of IMC layers, it can be found that the orientations of IMC have been changed by magnetic field.Originality/valueThis paper investigates the growth behaviour of IMC layers during the solid‐liquid interfacial reactions of Sn1.5Cu/Cu in a high magnetic field.

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Enhanced Phenomena in Metals with Electric and Magnetic Fields: II Magnetic Fields

Cited by 20 publications

References 56 publications

Effect of high magnetic field on recrystallization behavior of cold rolled H70 brass

Effect of high magnetic field on recrystallization behavior of cold rolled H70 brass

Structural control of Fe-based alloys through diffusional solid/solid phase transformations in a high magnetic field

The growth behaviours of IMC layers in solid‐liquid interfacial reactions of Sn1.5Cu/Cu in high magnetic fields

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