Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering
In this paper, the structural characteristics of a W-Ta-Mo-Nb-V-Cr-Zr-Ti non-equiatomic refractory metal alloy obtained by spark plasma sintering (SPS) of a high-energy ball-milled powder mixture are reported. High-energy ball milling resulted in the formation of particle agglomerates ranging from s...
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MDPI AG
2020-01-01
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| Online Access: | https://www.mdpi.com/1099-4300/22/2/143 |
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| author | Ivan A. Ditenberg Ivan V. Smirnov Michail A. Korchagin Konstantin V. Grinyaev Vladlen V. Melnikov Yuriy P. Pinzhin Alexander I. Gavrilov Maksim A. Esikov Vyacheslav I. Mali Dina V. Dudina |
| author_facet | Ivan A. Ditenberg Ivan V. Smirnov Michail A. Korchagin Konstantin V. Grinyaev Vladlen V. Melnikov Yuriy P. Pinzhin Alexander I. Gavrilov Maksim A. Esikov Vyacheslav I. Mali Dina V. Dudina |
| author_sort | Ivan A. Ditenberg |
| collection | DOAJ |
| description | In this paper, the structural characteristics of a W-Ta-Mo-Nb-V-Cr-Zr-Ti non-equiatomic refractory metal alloy obtained by spark plasma sintering (SPS) of a high-energy ball-milled powder mixture are reported. High-energy ball milling resulted in the formation of particle agglomerates ranging from several tens to several hundreds of micrometers. These agglomerates were composed of micrometer and submicrometer particles. It was found that, during ball milling, a solid solution of A2 structure formed. The grains of the sintered material ranged from fractions of a micrometer to several micrometers. During SPS, the phase transformations in the alloy led to the formation of a Laves phase of C15 structure and ZrO and ZrO<sub>2</sub> nanoparticles. The microhardness of the ball-milled alloy and sintered material was found to be 9.28 GPa ± 1.31 GPa and 8.95 GPa ± 0.42 GPa, respectively. The influence of the processing conditions on the structure, phase composition, and microhardness of the alloy is discussed. |
| first_indexed | 2024-04-11T18:41:18Z |
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| id | doaj.art-dc9bd0d600db41849f6f3a13130ceeb4 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-04-11T18:41:18Z |
| publishDate | 2020-01-01 |
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| series | Entropy |
| spelling | doaj.art-dc9bd0d600db41849f6f3a13130ceeb42022-12-22T04:08:58ZengMDPI AGEntropy1099-43002020-01-0122214310.3390/e22020143e22020143Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma SinteringIvan A. Ditenberg0Ivan V. Smirnov1Michail A. Korchagin2Konstantin V. Grinyaev3Vladlen V. Melnikov4Yuriy P. Pinzhin5Alexander I. Gavrilov6Maksim A. Esikov7Vyacheslav I. Mali8Dina V. Dudina9Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 634055 Tomsk, RussiaInstitute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 634055 Tomsk, RussiaInstitute of Solid State Chemistry and Mechanochemistry of the Siberian Branch of the Russian Academy of Sciences, 630128 Novosibirsk, RussiaInstitute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 634055 Tomsk, RussiaDepartment of Metal Physics, Faculty of Physics, National Research Tomsk State University, 634050 Tomsk, RussiaInstitute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 634055 Tomsk, RussiaInstitute of Solid State Chemistry and Mechanochemistry of the Siberian Branch of the Russian Academy of Sciences, 630128 Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, RussiaIn this paper, the structural characteristics of a W-Ta-Mo-Nb-V-Cr-Zr-Ti non-equiatomic refractory metal alloy obtained by spark plasma sintering (SPS) of a high-energy ball-milled powder mixture are reported. High-energy ball milling resulted in the formation of particle agglomerates ranging from several tens to several hundreds of micrometers. These agglomerates were composed of micrometer and submicrometer particles. It was found that, during ball milling, a solid solution of A2 structure formed. The grains of the sintered material ranged from fractions of a micrometer to several micrometers. During SPS, the phase transformations in the alloy led to the formation of a Laves phase of C15 structure and ZrO and ZrO<sub>2</sub> nanoparticles. The microhardness of the ball-milled alloy and sintered material was found to be 9.28 GPa ± 1.31 GPa and 8.95 GPa ± 0.42 GPa, respectively. The influence of the processing conditions on the structure, phase composition, and microhardness of the alloy is discussed.https://www.mdpi.com/1099-4300/22/2/143multicomponent alloyspowder mixturerefractory metalsball millingconsolidationspark plasma sinteringmicrostructuremicrohardness |
| spellingShingle | Ivan A. Ditenberg Ivan V. Smirnov Michail A. Korchagin Konstantin V. Grinyaev Vladlen V. Melnikov Yuriy P. Pinzhin Alexander I. Gavrilov Maksim A. Esikov Vyacheslav I. Mali Dina V. Dudina Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering Entropy multicomponent alloys powder mixture refractory metals ball milling consolidation spark plasma sintering microstructure microhardness |
| title | Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering |
| title_full | Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering |
| title_fullStr | Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering |
| title_full_unstemmed | Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering |
| title_short | Structure and Phase Composition of a W-Ta-Mo-Nb-V-Cr-Zr-Ti Alloy Obtained by Ball Milling and Spark Plasma Sintering |
| title_sort | structure and phase composition of a w ta mo nb v cr zr ti alloy obtained by ball milling and spark plasma sintering |
| topic | multicomponent alloys powder mixture refractory metals ball milling consolidation spark plasma sintering microstructure microhardness |
| url | https://www.mdpi.com/1099-4300/22/2/143 |
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