Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing
Thermal processing is a useful method for improving the strengthening effects of fibers used to reinforce metal matrix composites (MMCs), but the corresponding models have not been constructed. In this work, a Ti matrix composite (TMC) reinforced by in situ TiB fibers was prepared, then thermal proc...
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MDPI AG
2023-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/6/2472 |
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| author | Peifeng Zhao Fengcang Ma Ping Liu Wei Li Xinkuan Liu Xiaohong Chen Ke Zhang |
| author_facet | Peifeng Zhao Fengcang Ma Ping Liu Wei Li Xinkuan Liu Xiaohong Chen Ke Zhang |
| author_sort | Peifeng Zhao |
| collection | DOAJ |
| description | Thermal processing is a useful method for improving the strengthening effects of fibers used to reinforce metal matrix composites (MMCs), but the corresponding models have not been constructed. In this work, a Ti matrix composite (TMC) reinforced by in situ TiB fibers was prepared, then thermal processing was applied to it at different levels of deformation to align the TiB fibers along the loading direction. Changes in the microstructure of the matrix, the orientation and the aspect ratio of the TiB fibers during this process were investigated. It was found that the aspect ratio of TiB fibers decreased sharply after a large amount of deformation. The strengthening effect of TiB fibers in the composite was simulated by strengthening models of the fibers, and the simulated results were verified by the results of tensile tests. The modeled results show that the strengthening factor (<i>C</i><sub>0</sub>) of the in situ TiB fibers improved from 0.125 in the as-cast composite to 0.520, 0.688 and 0.858 by the processes with deformation ratios of 0.39, 0.26 and 0.14, respectively. The results of the tensile tests showed that the measured values of C<sub>0</sub> gradually deviated from the modeled ones with an increase in the ratio of deformation applied during processing, and the deviation could be interpreted with the strengthening models. |
| first_indexed | 2024-03-11T06:14:36Z |
| format | Article |
| id | doaj.art-12c56bfdb7934035a3d50c051a17de0f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T06:14:36Z |
| publishDate | 2023-03-01 |
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| spelling | doaj.art-12c56bfdb7934035a3d50c051a17de0f2023-11-17T12:22:44ZengMDPI AGMaterials1996-19442023-03-01166247210.3390/ma16062472Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal ProcessingPeifeng Zhao0Fengcang Ma1Ping Liu2Wei Li3Xinkuan Liu4Xiaohong Chen5Ke Zhang6School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471000, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaThermal processing is a useful method for improving the strengthening effects of fibers used to reinforce metal matrix composites (MMCs), but the corresponding models have not been constructed. In this work, a Ti matrix composite (TMC) reinforced by in situ TiB fibers was prepared, then thermal processing was applied to it at different levels of deformation to align the TiB fibers along the loading direction. Changes in the microstructure of the matrix, the orientation and the aspect ratio of the TiB fibers during this process were investigated. It was found that the aspect ratio of TiB fibers decreased sharply after a large amount of deformation. The strengthening effect of TiB fibers in the composite was simulated by strengthening models of the fibers, and the simulated results were verified by the results of tensile tests. The modeled results show that the strengthening factor (<i>C</i><sub>0</sub>) of the in situ TiB fibers improved from 0.125 in the as-cast composite to 0.520, 0.688 and 0.858 by the processes with deformation ratios of 0.39, 0.26 and 0.14, respectively. The results of the tensile tests showed that the measured values of C<sub>0</sub> gradually deviated from the modeled ones with an increase in the ratio of deformation applied during processing, and the deviation could be interpreted with the strengthening models.https://www.mdpi.com/1996-1944/16/6/2472metal matrix composites (MMCs)fiber orientationfiber aspect ratiostrengthening effectthermal processing route |
| spellingShingle | Peifeng Zhao Fengcang Ma Ping Liu Wei Li Xinkuan Liu Xiaohong Chen Ke Zhang Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing Materials metal matrix composites (MMCs) fiber orientation fiber aspect ratio strengthening effect thermal processing route |
| title | Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing |
| title_full | Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing |
| title_fullStr | Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing |
| title_full_unstemmed | Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing |
| title_short | Evolution of the Strengthening Effects of In Situ TiB Fibers in a Ti Composite with Various Levels of Thermal Processing |
| title_sort | evolution of the strengthening effects of in situ tib fibers in a ti composite with various levels of thermal processing |
| topic | metal matrix composites (MMCs) fiber orientation fiber aspect ratio strengthening effect thermal processing route |
| url | https://www.mdpi.com/1996-1944/16/6/2472 |
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