Manifestation of Magnetoplastic Effect in Some Metallic Alloys

Покоев, А. В.; Osinskaya, Yu. V.

doi:10.4028/www.scientific.net/ddf.383.180

Cited by 13 publications

(10 citation statements)

References 13 publications

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“…Several mechanisms have been proposed to explain the observed effects. These include thermal heating [11], the magnetoplastic effect [13], and the interaction of free electrons with mobile or pinned dislocations [3]. The above mechanisms satisfactorily explain the softening effect of the current in pure metals or single-phase alloys without structure-phase transformations.…”

Section: Introductionmentioning

confidence: 88%

Atypical behavior of materials during current-assisted tension

Stolyarov

2022

Lett. Mater.

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The passage of electric current in conductive materials is accompanied by a variety of physical phenomena, one of which is the so-called electroplastic effect, which manifests itself in a decrease in flow stresses and an increase in plasticity. Despite the early discovery of the electroplastic effect, the proposed mechanisms could not fully explain the observed experimental facts. Moreover, as shown in this study, some modes / regimes of electric current can lead to atypical strengthening phenomena even in pure metals and to atypical upward stress jumps in alloys with phase transformations. The paper considers examples of strengthening under a pulsed current with a density greater than the critical one and a duty cycle of more than 10 3 in pure metals, shape memory alloys, ferrite-pearlitic and stainless steels. It is assumed the selected current regimes provide the minimum thermal effect and maximum stress relaxation. The literature data and the results obtained, suggests that among the possible causes of strengthening there may be structural changes (recrystallization and refinement of grains, transformation of lamellar phases into spherical ones), martensitic transformation. It is concluded the atypical current effect is due to the material nature and high duty cycle of the electric current.

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Section: Introductionmentioning

confidence: 88%

Atypical behavior of materials during current-assisted tension

Stolyarov

2022

Lett. Mater.

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“…However, the microhardne 0.33Ni alloy increased by 38.0% after the addition of the Ni element (in Fi For this phenomenon, there was a similar situation in magnetic field aluminum alloy. Figure 3 shows the microhardness changes of aluminum ferent components under magnetic field-assisted aging [20,21]. It can be s that the microhardness of the alloy with magnetic field at the same aging than that without magnetic field.…”

Section: Magnetic Field Assisted Heat Treatment Of Metallic Materialsmentioning

confidence: 98%

“…For this phenomenon, there was a similar situation in magnetic field-assisted aging aluminum alloy. Figure 3 shows the microhardness changes of aluminum alloys with different components under magnetic field-assisted aging [20,21]. It can be seen in Figure 3a that the microhardness of the alloy with magnetic field at the same aging time was higher than that without magnetic field.…”

Section: Magnetic Field Assisted Heat Treatment Of Metallic Materialsmentioning

confidence: 98%

“…According to the above research contents [11][12][13][14][15][16][17][18][19][20][21], the changes in microhardness of magnetic field-assisted heat treatment of aluminum and aluminum alloy, beryllium-bronze alloy, and titanium alloy compared with that without magnetic field are sorted into Table 1. It can be seen from Table 1 that the magnetic field can significantly change the hardness of the alloy during metal heat treatment assisted by a magnetic field.…”

Section: Magnetic Field Assisted Heat Treatment Of Metallic Materialsmentioning

confidence: 99%

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Research Progress of Magnetic Field Regulated Mechanical Property of Solid Metal Materials

Zhao

et al. 2022

Metals

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During the material preparation process, the magnetic field can act with high intensity energy on the material without contact and affect its microstructure and properties. This non-contact processing method, which can change the microstructure and properties of material without affecting the shape and size of products, has become an important technical means to develop new materials and optimize the properties of materials. It has been widely used in scientific research and industrial production. In recent years, the magnetic field assisted processing of difficult-to-deform materials or improving the performance of complex and precision parts has been rapidly and widely concerned by scholars at home and abroad. This paper reviews the research progress of magnetic field regulating the microstructure, and properties of solid metal materials. The effects of magnetic field-assisted heat treatment, magnetic field assisted stretching, and magnetic field independent treatment on the microstructure and properties of solid metal materials are introduced. The mechanism of the magnetic field effect on the properties of metal materials is summarized, and future research on the magnetic field effect on solid metal has been prospected.

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“…Magnetoplastic effects firstly reported in 1987 [1] originally referred to the phenomena that a magnetic field affects the dislocation-controlled plasticity of solids including ionic [1][2][3][4][5][6][7][8], covalent [6,[9][10][11][12][13][14][15][16][17][18][19][20] and metallic [3,4,[21][22][23][24][25][26] crystals. With the deepening of the relevant researches, a variety of effects of magnetic field on the microstructures [27][28][29][30][31][32][33][34][35][36] and properties [34,[36][37][38][39][40][41][42][43]…”

Section: Introductionmentioning

confidence: 99%

A study on the room-temperature magnetoplastic effect of silicon and its mechanism

Zhang¹,

Zhao²,

Wang³

et al. 2021

J. Phys.: Condens. Matter

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Exposure to a magnetic field at room temperature was found able to promote the dislocation motion and distortion relaxation in silicon. The Kernel average misorientation maps of the silicon samples obtained by electron backscatter diffraction (EBSD) showed that a magnetic field ∼1 T can cause dislocation movement of hundreds of nanometers. And the EBSD image quality maps indicated that the magnetic field can cause the relaxation of the lattice distortion. The Δg mechanism of the magnetically stimulated changes was discussed.

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Manifestation of Magnetoplastic Effect in Some Metallic Alloys

Cited by 13 publications

References 13 publications

Atypical behavior of materials during current-assisted tension

Atypical behavior of materials during current-assisted tension

Research Progress of Magnetic Field Regulated Mechanical Property of Solid Metal Materials

A study on the room-temperature magnetoplastic effect of silicon and its mechanism

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