Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting
In this study, aluminum matrix composites reinforced with micro-TiN were fabricated using selective laser melting (SLM) technique. The study investigates the effects of TiN content on densification, microstructure evolution, crystal textures, and mechanical properties. The results show that the rela...
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| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2023-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300015H.pdf |
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| author | Huang X. Wang L. Huang W.-D. He D.-D. Cheng X.-H. Xu X.-P. Chen X.-X. Qin S.-S. Huang L.-H. |
| author_facet | Huang X. Wang L. Huang W.-D. He D.-D. Cheng X.-H. Xu X.-P. Chen X.-X. Qin S.-S. Huang L.-H. |
| author_sort | Huang X. |
| collection | DOAJ |
| description | In this study, aluminum matrix composites reinforced with micro-TiN were fabricated using selective laser melting (SLM) technique. The study investigates the effects of TiN content on densification, microstructure evolution, crystal textures, and mechanical properties. The results show that the relative density of composite samples containing 0–3 wt. % TiN exceeds 98%. However, further increase in TiN content leads to a decrease in relative density. The TiN particles are uniformly distributed and wetted by the AlSi10Mg matrix, forming a graded interfacial layer. The TiN particles refine the matrix grains and significantly reduce the prevalence (001) texture by promoting a heterogeneous nucleation process. In comparison to the AlSi10Mg alloy, the TiN/AlSi10Mg composite exhibits improved microhardness, tensile strength, and wear resistance. The exceptional mechanical properties of the Al matrix composites are attributed to the dispersion strengthening of the TiN particles and the fine-grain strengthening of the matrix. The optimal TiN content is found to be 3 wt. %, resulting in excellent mechanical performance of the fabricated samples (132.4±4.1 HV for hardness and 379.7±4.6 MPa for tensile strength) with a low friction coefficient of 0.49. |
| format | Article |
| id | doaj-art-bd6fda6a52ca468abf083966c8d02760 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-bd6fda6a52ca468abf083966c8d027602025-02-03T09:40:59ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752023-01-0159116918210.2298/JMMB230112015H1450-53392300015HMicrostructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser meltingHuang X.0Wang L.1Huang W.-D.2He D.-D.3Cheng X.-H.4Xu X.-P.5Chen X.-X.6Qin S.-S.7Huang L.-H.8Fujian Key Laboratory of Intelligent Machining Technology and Equipment, Fujian University of Technology, Fuzhou, China + School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaFujian Key Laboratory of Intelligent Machining Technology and Equipment, Fujian University of Technology, Fuzhou, China + School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaSchool of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaFujian Key Laboratory of Intelligent Machining Technology and Equipment, Fujian University of Technology, Fuzhou, China + School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaFujian Key Laboratory of Intelligent Machining Technology and Equipment, Fujian University of Technology, Fuzhou, China + School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, ChinaIn this study, aluminum matrix composites reinforced with micro-TiN were fabricated using selective laser melting (SLM) technique. The study investigates the effects of TiN content on densification, microstructure evolution, crystal textures, and mechanical properties. The results show that the relative density of composite samples containing 0–3 wt. % TiN exceeds 98%. However, further increase in TiN content leads to a decrease in relative density. The TiN particles are uniformly distributed and wetted by the AlSi10Mg matrix, forming a graded interfacial layer. The TiN particles refine the matrix grains and significantly reduce the prevalence (001) texture by promoting a heterogeneous nucleation process. In comparison to the AlSi10Mg alloy, the TiN/AlSi10Mg composite exhibits improved microhardness, tensile strength, and wear resistance. The exceptional mechanical properties of the Al matrix composites are attributed to the dispersion strengthening of the TiN particles and the fine-grain strengthening of the matrix. The optimal TiN content is found to be 3 wt. %, resulting in excellent mechanical performance of the fabricated samples (132.4±4.1 HV for hardness and 379.7±4.6 MPa for tensile strength) with a low friction coefficient of 0.49.https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300015H.pdfselective laser meltingtin/alsi10mg compositesmicrostructure developmentmechanical properties |
| spellingShingle | Huang X. Wang L. Huang W.-D. He D.-D. Cheng X.-H. Xu X.-P. Chen X.-X. Qin S.-S. Huang L.-H. Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting Journal of Mining and Metallurgy. Section B: Metallurgy selective laser melting tin/alsi10mg composites microstructure development mechanical properties |
| title | Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting |
| title_full | Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting |
| title_fullStr | Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting |
| title_full_unstemmed | Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting |
| title_short | Microstructure development, mechanical properties and underlying mechanism of micro-TiN-reinforced AlSi10Mg composites fabricated by selective laser melting |
| title_sort | microstructure development mechanical properties and underlying mechanism of micro tin reinforced alsi10mg composites fabricated by selective laser melting |
| topic | selective laser melting tin/alsi10mg composites microstructure development mechanical properties |
| url | https://doiserbia.nb.rs/img/doi/1450-5339/2023/1450-53392300015H.pdf |
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