Magnetically enhanced recrystallization in an aluminum alloy

Bhaumik, Sheila; Molodova, Xenia; Molodov, Dmitri A.; Gottstein, G.

doi:10.1016/j.scriptamat.2006.08.018

Cited by 52 publications

(27 citation statements)

References 4 publications

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“…during recrystallization). In some materials, GBs can be moved by an applied magnetic field [609][610][611] or other physical forces. Much of the current empirical knowledge about GB migration comes from experiments on bicrystals, in which individual boundaries with precisely characterized bicrystallography are moved by capillary forces [389,612].…”

Section: Interface Motionmentioning

confidence: 99%

Atomistic modeling of interfaces and their impact on microstructure and properties

2010

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Atomic-level modeling of materials provides fundamental insights into phase stability, structure and properties of crystalline defects, and to physical mechanisms of many processes ranging from atomic diffusion to interface migration. This knowledge often serves as a guide for the development of mesoscopic and macroscopic continuum models, with input parameters provided by atomistic models. This paper gives an overview of the most recent developments in the area of atomistic modeling with emphasis on interfaces and their impact on microstructure and properties of materials. Modern computer simulation methodologies are discussed and illustrated by several applications related to thermodynamic, kinetic and mechanical properties of materials. Existing challenges and future research directions in this field are outlined.

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Section: Interface Motionmentioning

confidence: 99%

Atomistic modeling of interfaces and their impact on microstructure and properties

2010

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“…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][5][6][7][8][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.…”

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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“…However, only limited studies have focused on the annealing behaviour of non-ferromagnetic materials [7][8][9][10][11][12] . Molodov 7,8) revealed that annealing under a magnetic eld facilitated recovery of commercial aluminium alloy.…”

Section: Introductionmentioning

confidence: 99%

“…Molodov 7,8) revealed that annealing under a magnetic eld facilitated recovery of commercial aluminium alloy. Accordingly, subsequent recrystallization of the cold-rolled aluminium alloy (with paramagnetism) occurred at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Magnetically Retarded Recovery and Recrystallization in Cold Rolled Pure Copper

et al. 2016

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The effects of magnetic eld annealing on the micro-hardness and recrystallization microstructures in a cold-rolled pure copper sheet were studied. The results showed that the micro-hardness in the specimens subjected to magnetic eld annealing were higher than those annealed without the magnetic eld. There are signi cant differences in the microstructure during the recovery and early stage of recrystallization for the specimens annealed with and without the eld. Magnetic annealing leads to the retarded recovery and delayed primary recrystallization. This effect is attributed to the decreasing of stored energy, which provides the driving force for the recovery and early stage of recrystallization being retarded by the application of a magnetic eld in the cold-rolled pure copper sheets.

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Magnetically enhanced recrystallization in an aluminum alloy

Cited by 52 publications

References 4 publications

Atomistic modeling of interfaces and their impact on microstructure and properties

Atomistic modeling of interfaces and their impact on microstructure and properties

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

Magnetically Retarded Recovery and Recrystallization in Cold Rolled Pure Copper

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