Micro and nanosized materials with high entropy
The stability of high-entropy alloys, like equiatomic and non-equiatomic micro- and nanostructural ones, is relevant when creating stable multicomponent compositions with improved performance. The implementation of such materials is possible by mechanical alloying, magnetron sputtering, as well as b...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Russian |
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Tver State University
2023-12-01
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| Series: | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| Subjects: | |
| Online Access: | https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-472/?lang=en |
| _version_ | 1797417568590364672 |
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| author | E.D. Kurbanova R.M. Belyakova V.A. Polukhin |
| author_facet | E.D. Kurbanova R.M. Belyakova V.A. Polukhin |
| author_sort | E.D. Kurbanova |
| collection | DOAJ |
| description | The stability of high-entropy alloys, like equiatomic and non-equiatomic micro- and nanostructural ones, is relevant when creating stable multicomponent compositions with improved performance. The implementation of such materials is possible by mechanical alloying, magnetron sputtering, as well as by the electrochemical method using the «top-down and bottom-to-top» strategy at moderate temperatures < 200°C with controlled production of both micro-from 0,5 to 20 μm and nanoscale high-entropy alloys with particles from 2 to 10 nm. The well-studied «structure-property» relationship for classical alloys is not yet completely clear for nano-high-entropy alloys, but it is obvious that it is possible to form excellent mechanical characteristics by selecting chemical compositions and a special heat treatment regime. Regarding the chemical composition, requirements are imposed both on the main components and alloying additives. Preliminarily, not only compositions are selected, but also methods for the synthesis of high-entropy alloys, including ab initio (density functional theory), neural network prediction, and classical molecular dynamic simulation with possible conditions for the formation of model nano- high-entropy alloy samples, as well as derivative options. The resulting descriptions are compared with real methods of high-entropy alloys synthesis, for example, exposure to various synthetic media. |
| first_indexed | 2024-03-09T06:21:43Z |
| format | Article |
| id | doaj.art-412705989ccc44dc851db5c1b50badc9 |
| institution | Directory Open Access Journal |
| issn | 2226-4442 2658-4360 |
| language | Russian |
| last_indexed | 2024-03-09T06:21:43Z |
| publishDate | 2023-12-01 |
| publisher | Tver State University |
| record_format | Article |
| series | Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов |
| spelling | doaj.art-412705989ccc44dc851db5c1b50badc92023-12-03T11:38:31ZrusTver State UniversityФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов2226-44422658-43602023-12-011547248010.26456/pcascnn/2023.15.472Micro and nanosized materials with high entropyE.D. Kurbanova0R.M. Belyakova1V.A. Polukhin2Institute of Metallurgy of the Ural Branch of the RAS, Yekaterinburg, Russia Institute of Metallurgy of the Ural Branch of the RAS, Yekaterinburg, Russia Institute of Metallurgy of the Ural Branch of the RAS, Yekaterinburg, Russia The stability of high-entropy alloys, like equiatomic and non-equiatomic micro- and nanostructural ones, is relevant when creating stable multicomponent compositions with improved performance. The implementation of such materials is possible by mechanical alloying, magnetron sputtering, as well as by the electrochemical method using the «top-down and bottom-to-top» strategy at moderate temperatures < 200°C with controlled production of both micro-from 0,5 to 20 μm and nanoscale high-entropy alloys with particles from 2 to 10 nm. The well-studied «structure-property» relationship for classical alloys is not yet completely clear for nano-high-entropy alloys, but it is obvious that it is possible to form excellent mechanical characteristics by selecting chemical compositions and a special heat treatment regime. Regarding the chemical composition, requirements are imposed both on the main components and alloying additives. Preliminarily, not only compositions are selected, but also methods for the synthesis of high-entropy alloys, including ab initio (density functional theory), neural network prediction, and classical molecular dynamic simulation with possible conditions for the formation of model nano- high-entropy alloy samples, as well as derivative options. The resulting descriptions are compared with real methods of high-entropy alloys synthesis, for example, exposure to various synthetic media.https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-472/?lang=enmulticomponentamorphous and nanocrystalline alloyshigh-entropy alloysnano- high-entropy alloysstrain hardeninglandscape-local fluctuationsstrengththermal stabilitylayered compositesthermodynamic calculations |
| spellingShingle | E.D. Kurbanova R.M. Belyakova V.A. Polukhin Micro and nanosized materials with high entropy Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов multicomponent amorphous and nanocrystalline alloys high-entropy alloys nano- high-entropy alloys strain hardening landscape-local fluctuations strength thermal stability layered composites thermodynamic calculations |
| title | Micro and nanosized materials with high entropy |
| title_full | Micro and nanosized materials with high entropy |
| title_fullStr | Micro and nanosized materials with high entropy |
| title_full_unstemmed | Micro and nanosized materials with high entropy |
| title_short | Micro and nanosized materials with high entropy |
| title_sort | micro and nanosized materials with high entropy |
| topic | multicomponent amorphous and nanocrystalline alloys high-entropy alloys nano- high-entropy alloys strain hardening landscape-local fluctuations strength thermal stability layered composites thermodynamic calculations |
| url | https://physchemaspects.ru/2023/doi-10-26456-pcascnn-2023-15-472/?lang=en |
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