The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites
In metallic glass-reinforced metal matrix composites, the glassy phase can serve a dual purpose: (i) it can behave as soft binder and porosity remover during consolidation; and (ii) it can act as the hard reinforcing phase after densification. The present work aimed to demonstrate the benefit of the...
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MDPI AG
2022-05-01
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| Series: | Journal of Composites Science |
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| Online Access: | https://www.mdpi.com/2504-477X/6/5/135 |
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| author | Vyacheslav I. Kvashnin Dina V. Dudina Arina V. Ukhina Guilherme Yuuki Koga Konstantinos Georgarakis |
| author_facet | Vyacheslav I. Kvashnin Dina V. Dudina Arina V. Ukhina Guilherme Yuuki Koga Konstantinos Georgarakis |
| author_sort | Vyacheslav I. Kvashnin |
| collection | DOAJ |
| description | In metallic glass-reinforced metal matrix composites, the glassy phase can serve a dual purpose: (i) it can behave as soft binder and porosity remover during consolidation; and (ii) it can act as the hard reinforcing phase after densification. The present work aimed to demonstrate the benefit of the glassy reinforcing particles for the densification of aluminum matrix composites. The consolidation behavior of Al–50 vol.% Fe-based alloy mixtures prepared using a glassy Fe<sub>66</sub>Cr<sub>10</sub>Nb<sub>5</sub>B<sub>19</sub> alloy powder (T<sub>g</sub> = 521 °C, T<sub>x</sub> = 573 °C) or a crystalline Fe<sub>62</sub>Cr<sub>10</sub>Nb<sub>12</sub>B<sub>16</sub> alloy powder was studied under spark plasma sintering (SPS) and hot pressing (HP) conditions. The powders were consolidated by heating above the glass transition temperature of the glassy alloy (up to 540 °C in SPS and 570 °C in HP). When the coarse aluminum powder was used, the reinforcing particles formed chains within the microstructure. In composites formed from the fine Al powder, the particles of the Fe-based alloy were separated from each other by the metallic matrix, and the tendency to form agglomerates was reduced. The glassy state of the alloy was shown to be beneficial for densification, as the metallic glass acted as a soft binder. The densification enhancement effect was more pronounced in the case of reinforcing particles forming chains. The hardness of the Al–50 vol.% glassy Fe<sub>66</sub>Cr<sub>10</sub>Nb<sub>5</sub>B<sub>19</sub> composites obtained by SPS was twice the hardness of the unreinforced sintered aluminum (110 HV<sub>1</sub> versus 45 HV<sub>1</sub>). |
| first_indexed | 2024-03-10T03:38:54Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T03:38:54Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
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| series | Journal of Composites Science |
| spelling | doaj.art-a50c5bfea1304399ad8884de24804b052023-11-23T11:37:37ZengMDPI AGJournal of Composites Science2504-477X2022-05-016513510.3390/jcs6050135The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix CompositesVyacheslav I. Kvashnin0Dina V. Dudina1Arina V. Ukhina2Guilherme Yuuki Koga3Konstantinos Georgarakis4Lavrentyev Institute of Hydrodynamics SB RAS, Lavrentyev Ave. 15, 630090 Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics SB RAS, Lavrentyev Ave. 15, 630090 Novosibirsk, RussiaInstitute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, RussiaDepartment of Materials Science and Engineering, Federal University of São Carlos, Via Washington Luiz, km 235, São Carlos 13565-905, SP, BrazilSchool of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield MK43 0AL, UKIn metallic glass-reinforced metal matrix composites, the glassy phase can serve a dual purpose: (i) it can behave as soft binder and porosity remover during consolidation; and (ii) it can act as the hard reinforcing phase after densification. The present work aimed to demonstrate the benefit of the glassy reinforcing particles for the densification of aluminum matrix composites. The consolidation behavior of Al–50 vol.% Fe-based alloy mixtures prepared using a glassy Fe<sub>66</sub>Cr<sub>10</sub>Nb<sub>5</sub>B<sub>19</sub> alloy powder (T<sub>g</sub> = 521 °C, T<sub>x</sub> = 573 °C) or a crystalline Fe<sub>62</sub>Cr<sub>10</sub>Nb<sub>12</sub>B<sub>16</sub> alloy powder was studied under spark plasma sintering (SPS) and hot pressing (HP) conditions. The powders were consolidated by heating above the glass transition temperature of the glassy alloy (up to 540 °C in SPS and 570 °C in HP). When the coarse aluminum powder was used, the reinforcing particles formed chains within the microstructure. In composites formed from the fine Al powder, the particles of the Fe-based alloy were separated from each other by the metallic matrix, and the tendency to form agglomerates was reduced. The glassy state of the alloy was shown to be beneficial for densification, as the metallic glass acted as a soft binder. The densification enhancement effect was more pronounced in the case of reinforcing particles forming chains. The hardness of the Al–50 vol.% glassy Fe<sub>66</sub>Cr<sub>10</sub>Nb<sub>5</sub>B<sub>19</sub> composites obtained by SPS was twice the hardness of the unreinforced sintered aluminum (110 HV<sub>1</sub> versus 45 HV<sub>1</sub>).https://www.mdpi.com/2504-477X/6/5/135aluminum matrix compositespark plasma sinteringhot pressingmicrostructuremetallic glassreinforcement |
| spellingShingle | Vyacheslav I. Kvashnin Dina V. Dudina Arina V. Ukhina Guilherme Yuuki Koga Konstantinos Georgarakis The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites Journal of Composites Science aluminum matrix composite spark plasma sintering hot pressing microstructure metallic glass reinforcement |
| title | The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites |
| title_full | The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites |
| title_fullStr | The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites |
| title_full_unstemmed | The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites |
| title_short | The Benefit of the Glassy State of Reinforcing Particles for the Densification of Aluminum Matrix Composites |
| title_sort | benefit of the glassy state of reinforcing particles for the densification of aluminum matrix composites |
| topic | aluminum matrix composite spark plasma sintering hot pressing microstructure metallic glass reinforcement |
| url | https://www.mdpi.com/2504-477X/6/5/135 |
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