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

Zhang, Xu; Zhao, Qi; Wang, Zheyao; Cai, Zhipeng; Pan, Jiluan

doi:10.1088/1361-648x/ac1823

Cited by 5 publications

(4 citation statements)

References 58 publications

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“…However, it should be noted that, according to the ∆g mechanism, transition from the singlet state to the triplet state is also promoted, and it should also be taken into consideration [60]. A more detailed theoretical analysis was employed to obtain the density matrix of four spin stats under the external magnetic field [69]. By calculation, the magnetoplastic effect was no longer attributed to the extended average life of the excited state of the reaction system caused by the external magnetic field, but to the change in the probability distribution of the life of the excited state.…”

Section: Mechanism For Microstructure Modificationsmentioning

confidence: 99%

“…A more detailed analysis starts from the spin configuration representation [69]. Omitting the initial derivation, the density matrix ˆ( ) t  of the spin states (S, T 0 , T + , T -) can be written in Eq.…”

Section: Frictionmentioning

confidence: 99%

“…for (a, b), © Elsevier Ltd. 2008; Ref [42]. for (c), © The Authors 2020; Ref [69]. for (d, e), © IOP Publishing 2021.…”

mentioning

confidence: 99%

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Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Cai,

Qian,

Zhang

et al. 2024

Friction

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Pulsed magnetic treatment (PMT) has been adopted as an effective strengthening method for engineering materials and components in recent years, and the development of its application depends on the comprehensive understanding of the nature of PMT. The deep mechanism was thought initially to be the magnetostrictive effect, while further investigation found that the magnetic field could lead to the change of the defect states in the crystal, which is called the magnetoplastic effect. Due to the complexity of the engineering materials, manifestations of the magnetoplastic effect become more diverse, and they were reviewed in the form of microstructure homogenization and interfacial stabilization. Further, the mechanism of the magnetoplastic effect was discussed, focusing on the changes in the spin states under the external magnetic field. Microstructure modifications could also alter material performances, especially the residual stress, plasticity, and fatigue properties. Therefore, PMT with specific parameters can be utilized to obtain an ideal combination of microstructure, residual stress, and mechanical properties for better service performance of different mechanical parts, and its applications on machining tools and bearings are perfect examples. This work reviews the effect of PMT on the microstructure and properties of different materials and the mechanism, and it also summarizes the fundamental applications of PMT on essential mechanical parts.

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Section: Mechanism For Microstructure Modificationsmentioning

confidence: 99%

Section: Frictionmentioning

confidence: 99%

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Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Cai,

Qian,

Zhang

et al. 2024

Friction

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“…When sorting out the magnetic field assisted treatment and independent treatment, it was found that the essence of the alloy properties changes is that magnetic field affects the movement of dislocation, mainly reflected in: (1) Dislocation de-pinning effect: magnetic field weakens the bonding force between atoms, and enhances the atomic mobility. It causes dislocation loosening at the pinning place [47][48][49]. (2) Dislocation core expansion: the expansion of dislocation core is caused by magnetic field in the process of dislocation de-pinning, which reduces the pinning resistance of dislocation movement and improves the effective stress driving dislocation movement [48].…”

Section: Magnetic Field Promotes Dislocation Motionmentioning

confidence: 99%

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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Interface strengthening for thermal sprayed WC-10Co4Cr coating subjected to pulsed magnetic treatment

Qian,

Liu,

Wang

et al. 2023

Rare Met.

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

Cited by 5 publications

References 58 publications

Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

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

Interface strengthening for thermal sprayed WC-10Co4Cr coating subjected to pulsed magnetic treatment

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