Structure formation of cast Al-Mg-Si alloys during the melts irradiation with nanosecond electromagnetic pulses

Деев, В. Б.; Ri, E. H.; Прусов, Е. С.; Ermakov, M. A.; Slavinskaya, Nadezhda A.

doi:10.1088/1757-899x/1001/1/012054

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…Deev et al [ 47 ] treated Al-Mg-Si alloy. The used generator of electromagnetic waves created pulses with parameters: positive polarity; amplitude up to 15 kV; duration 0.5 ns; pulse repetition rate up to 1 kHz; and the delay of the output pulse relative to the leading edge of the trigger pulse is 120 ns.…”

Section: Results Of the Practical Use Of Pulsed Processing Of Metal M...mentioning

confidence: 99%

“…Some hypotheses about the influence of EMP on the properties of melts are given in the works of Ri [ 11 , 47 ]. One of them is based on the cluster model of melts.…”

Section: Mechanisms Of the Impact Of Pulse Treatment On Metal Meltsmentioning

confidence: 99%

“… Changes in the binding energy during the approach of atoms in liquid metals under the influence of EMP: a 0 0 and a b 0 —interatomic distances in initial and treated liquid metals, respectively; E δ CB and E 0 CB are the binding energies in initial and treated liquid metals [ 47 ]. …”

Section: Figurementioning

confidence: 99%

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Theory and Practice of Using Pulsed Electromagnetic Processing of Metal Melts

2022

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In industrial practice, various methods of external influences on metal melts are used. For example, vibration processing, exposure to ultrasound, and other physical fields. The main purpose of such influences is purposeful grinding of the metal structure, which contributes to the improvement of mechanical characteristics. The article presents an overview of research on pulse processing of ferrous and non-ferrous melts: processing with pulsed current, electromagnetic pulses and pulsed magnetic fields. The results of the analysis showed that, despite the different methods and devices used for these treatments, their effect on the structure and properties of the cast metal is generally the same. The main effect is observed in the refinement of the macro and microstructure and a simultaneous increase in the strength properties and plasticity. The intensity of the observed effects depends on the characteristics of the equipment used to create the pulses. The main characteristics are: pulse duration, pulse frequency, current amplitude, and power.

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Section: Results Of the Practical Use Of Pulsed Processing Of Metal M...mentioning

confidence: 99%

“…Some hypotheses about the influence of EMP on the properties of melts are given in the works of Ri [ 11 , 47 ]. One of them is based on the cluster model of melts.…”

Section: Mechanisms Of the Impact Of Pulse Treatment On Metal Meltsmentioning

confidence: 99%

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Theory and Practice of Using Pulsed Electromagnetic Processing of Metal Melts

2022

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Physical methods of processing melts of metal matrix composites: Сurrent state and prospects

Деев

Прусов

2022

Izv.VUZ. Tsvet. Met.

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This review focuses on the known theoretical and experimental results in the field of obtaining metal matrix composite materials by processing the melts using physical methods in the conditions of casting and metallurgical processes. The possibilities, advantages and disadvantages of various physical impact methods are considered from the standpoint of their effect on the structural and morphological characteristics, physicomechanical and operational properties of cast composite materials based on aluminum and its alloys. The paper provides a classification and a detailed description of physical methods used for melt processing when obtaining metal matrix composites depending on the melt state during processing (melting, pouring and crystallization) and according to the physical principle of the effects applied (thermal, electromagnetic, cavitation, mechanical, etc). The paper describes a contemporary view of the laws and mechanisms of the effect exerted by melt processing using physical methods on the structure and phase formation processes of as-cast metal matrix composites. The currently known effects of the impact on their structure are described from a qualitative and quantitative point of view, in particular, effects associated with a change in the wettability of particles, their distribution, dispersion and morphology, as well as with a change in the structural state of the matrix material. The paper systematizes the data on the properties of metal matrix composites obtained using physical impacts on the melt during melting and crystallization. The research shows the prospects for the development and practical application of physical impact methods for melts in the production of metal matrix composites based on various matrix materials and reinforcement systems including endogenously, exogenously and integrally reinforced composite materials. Priority areas of theoretical research and experimental development are discussed highlighting discussion areas and issues in the field of obtaining metal matrix composites using physical impacts on melts during melting and crystallization. Areas for future research in this field are proposed based on the systematic analysis of key problems limiting the widespread industrial use of physical methods for melt processing.

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Physical Methods of Processing the Melts of Metal Matrix Composites: Current State and Prospects

Деев

Прусов

2022

Russ. J. Non-ferrous Metals

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Structure formation of cast Al-Mg-Si alloys during the melts irradiation with nanosecond electromagnetic pulses

Cited by 5 publications

References 17 publications

Theory and Practice of Using Pulsed Electromagnetic Processing of Metal Melts

Theory and Practice of Using Pulsed Electromagnetic Processing of Metal Melts

Physical methods of processing melts of metal matrix composites: Сurrent state and prospects

Physical Methods of Processing the Melts of Metal Matrix Composites: Current State and Prospects

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