Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting
Selective laser melting (SLM) was used to prepare LaB6 particle-reinforced titanium matrix composites(PRTMCs), the influence of laser energy on the densification behavior, phase, microstructure and the corresponding mechanical properties under quasi-static and impacting conditions were studied.The r...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
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Journal of Materials Engineering
2022-06-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.001054 |
| _version_ | 1828080028055764992 |
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| author | PENG Binyi LIU Yang ZHENG Xiaodong LI Zhiguo LI Guoping HU Jianbo WANG Yonggang |
| author_facet | PENG Binyi LIU Yang ZHENG Xiaodong LI Zhiguo LI Guoping HU Jianbo WANG Yonggang |
| author_sort | PENG Binyi |
| collection | DOAJ |
| description | Selective laser melting (SLM) was used to prepare LaB6 particle-reinforced titanium matrix composites(PRTMCs), the influence of laser energy on the densification behavior, phase, microstructure and the corresponding mechanical properties under quasi-static and impacting conditions were studied.The results show that the densification behavior of Ti-6Al-4V alloy is changed to some extent by the introduction of LaB6 particles, and the density of PRTMCs is reduced by either too high or too low laser energy input.Significant grain refinement happens after the addition of LaB6 particles, the grain boundary of the initial β and acicular α is weakened.As a consequence, the yield stress and ultimate compressive stress of the PRTMCs are enhanced but the ductility is weakened to some extent, meanwhile, PRTMCs exhibit obvious strain rate strengthening effect.Compared with the SLMed Ti-6Al-4V, the strain strengthening effect in the plastic deformation stage and brittle fracture characteristics in the instability stage of PRTMCs become more notable.Through this study, a theoretical basis for the dynamic compressive performance of laser additive manufactured PRTMCs can be provided. |
| first_indexed | 2024-04-11T03:11:49Z |
| format | Article |
| id | doaj.art-83b8a447c3e946e5adceac5b3d21a7d8 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T03:11:49Z |
| publishDate | 2022-06-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-83b8a447c3e946e5adceac5b3d21a7d82023-01-02T11:27:04ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812022-06-01506364810.11868/j.issn.1001-4381.2021.00105420220604Compression resistance of particle reinforced titanium matrix composites prepared by selective laser meltingPENG Binyi0LIU Yang1ZHENG Xiaodong2LI Zhiguo3LI Guoping4HU Jianbo5WANG Yonggang6School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, ChinaSchool of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, ChinaSchool of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, ChinaNational Key Laboratory of Shock Wave and Detonation Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, ChinaSchool of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, ChinaNational Key Laboratory of Shock Wave and Detonation Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, ChinaSchool of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang, ChinaSelective laser melting (SLM) was used to prepare LaB6 particle-reinforced titanium matrix composites(PRTMCs), the influence of laser energy on the densification behavior, phase, microstructure and the corresponding mechanical properties under quasi-static and impacting conditions were studied.The results show that the densification behavior of Ti-6Al-4V alloy is changed to some extent by the introduction of LaB6 particles, and the density of PRTMCs is reduced by either too high or too low laser energy input.Significant grain refinement happens after the addition of LaB6 particles, the grain boundary of the initial β and acicular α is weakened.As a consequence, the yield stress and ultimate compressive stress of the PRTMCs are enhanced but the ductility is weakened to some extent, meanwhile, PRTMCs exhibit obvious strain rate strengthening effect.Compared with the SLMed Ti-6Al-4V, the strain strengthening effect in the plastic deformation stage and brittle fracture characteristics in the instability stage of PRTMCs become more notable.Through this study, a theoretical basis for the dynamic compressive performance of laser additive manufactured PRTMCs can be provided.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.001054selective laser meltingtitanium matrix compositeparticle reinforcementdynamic com-pressive property |
| spellingShingle | PENG Binyi LIU Yang ZHENG Xiaodong LI Zhiguo LI Guoping HU Jianbo WANG Yonggang Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting Cailiao gongcheng selective laser melting titanium matrix composite particle reinforcement dynamic com-pressive property |
| title | Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting |
| title_full | Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting |
| title_fullStr | Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting |
| title_full_unstemmed | Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting |
| title_short | Compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting |
| title_sort | compression resistance of particle reinforced titanium matrix composites prepared by selective laser melting |
| topic | selective laser melting titanium matrix composite particle reinforcement dynamic com-pressive property |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2021.001054 |
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