Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting
In this paper, the effect of TB2 additions on a noval Al–Mg–Sc alloy was studied, and the microstructure and mechanical properties of SLM-fabricated TiB2/Al–Mg–Sc alloys were investigated. The results showed that molten pool width increased and molten pool depth slightly decreased with TiB2 increase...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423002077 |
| _version_ | 1797858791219265536 |
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| author | Min Wu Jing Tao Jihao Wang Wei Jiang Yueming Sun Dingping Dong Yu Zhao Mengmeng Wang Tong Liu Liangshun Luo Yanqing Su |
| author_facet | Min Wu Jing Tao Jihao Wang Wei Jiang Yueming Sun Dingping Dong Yu Zhao Mengmeng Wang Tong Liu Liangshun Luo Yanqing Su |
| author_sort | Min Wu |
| collection | DOAJ |
| description | In this paper, the effect of TB2 additions on a noval Al–Mg–Sc alloy was studied, and the microstructure and mechanical properties of SLM-fabricated TiB2/Al–Mg–Sc alloys were investigated. The results showed that molten pool width increased and molten pool depth slightly decreased with TiB2 increase, due to the laser absorptivity of the TiB2/Al–Mg–Sc alloys higher than that of Al–Mg–Sc alloy under the same process parameters. The microstructure of SLM-fabricated TiB2Al–Mg–Sc alloys were composed of fine-grained, coarse-grained and columnar-grained regions, and the fine-grained region increased with the increase of TiB2 content. The recrystallization regions in SLM-fabricated TiB2/Al–Mg–Sc alloy decreased with the increase of TiB2 content, and TiB2 additions used as heterogeneous nucleation to refine grains, which can pin grain boundaries and prevent recrystallization during SLM process. TiB2/Al–Mg–Sc alloy with 1% TiB2 additions showed a relatively higher comprehensive mechanical properties, and the tensile strength is 483 MPa, the elongation is 15.8%. Tensile strength of 1%TiB2/Al–Mg–Sc alloy was increased by 37 MPa and the elongation is also increased by 2.1% compared with 0%TiB2/Al–Mg–Sc alloy, and 2%TiB2/Al–Mg–Sc alloy shown a relatively lower comprehensive mechanical properties due to its lower density and TB2 agglomerated. |
| first_indexed | 2024-04-09T21:19:04Z |
| format | Article |
| id | doaj.art-06e063f9725a49ceb40df46d19599132 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:19:04Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj.art-06e063f9725a49ceb40df46d195991322023-03-28T06:47:00ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012335373546Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser meltingMin Wu0Jing Tao1Jihao Wang2Wei Jiang3Yueming Sun4Dingping Dong5Yu Zhao6Mengmeng Wang7Tong Liu8Liangshun Luo9Yanqing Su10School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, PR China; State-Owned Wuhu Machinery Factory, Wuhu, 241007, PR ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu, 241000, PR ChinaScience and Technology on Power Beam Processes Laboratory, AVIC Manufacturing Technology Institute, Beijing, 100024, ChinaSchool of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, PR ChinaSchool of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, PR China; Corresponding author.State-Owned Wuhu Machinery Factory, Wuhu, 241007, PR ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu, 241000, PR ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu, 241000, PR ChinaSchool of Materials Science and Engineering, Anhui Polytechnic University, Wuhu, 241000, PR China; Corresponding author.School of Materials Science & Engineering, Harbin Institute of Technology. Harbin 150001, ChinaSchool of Materials Science & Engineering, Harbin Institute of Technology. Harbin 150001, ChinaIn this paper, the effect of TB2 additions on a noval Al–Mg–Sc alloy was studied, and the microstructure and mechanical properties of SLM-fabricated TiB2/Al–Mg–Sc alloys were investigated. The results showed that molten pool width increased and molten pool depth slightly decreased with TiB2 increase, due to the laser absorptivity of the TiB2/Al–Mg–Sc alloys higher than that of Al–Mg–Sc alloy under the same process parameters. The microstructure of SLM-fabricated TiB2Al–Mg–Sc alloys were composed of fine-grained, coarse-grained and columnar-grained regions, and the fine-grained region increased with the increase of TiB2 content. The recrystallization regions in SLM-fabricated TiB2/Al–Mg–Sc alloy decreased with the increase of TiB2 content, and TiB2 additions used as heterogeneous nucleation to refine grains, which can pin grain boundaries and prevent recrystallization during SLM process. TiB2/Al–Mg–Sc alloy with 1% TiB2 additions showed a relatively higher comprehensive mechanical properties, and the tensile strength is 483 MPa, the elongation is 15.8%. Tensile strength of 1%TiB2/Al–Mg–Sc alloy was increased by 37 MPa and the elongation is also increased by 2.1% compared with 0%TiB2/Al–Mg–Sc alloy, and 2%TiB2/Al–Mg–Sc alloy shown a relatively lower comprehensive mechanical properties due to its lower density and TB2 agglomerated.http://www.sciencedirect.com/science/article/pii/S2238785423002077Selective laser meltingHigh-strength Al–Mg–Sc alloysMetal matrix compositesMechanical properties |
| spellingShingle | Min Wu Jing Tao Jihao Wang Wei Jiang Yueming Sun Dingping Dong Yu Zhao Mengmeng Wang Tong Liu Liangshun Luo Yanqing Su Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting Journal of Materials Research and Technology Selective laser melting High-strength Al–Mg–Sc alloys Metal matrix composites Mechanical properties |
| title | Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting |
| title_full | Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting |
| title_fullStr | Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting |
| title_full_unstemmed | Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting |
| title_short | Effects of TiB2 additions on microstructure and mechnical properties of Al–Mg–Sc alloy fabricated by selective laser melting |
| title_sort | effects of tib2 additions on microstructure and mechnical properties of al mg sc alloy fabricated by selective laser melting |
| topic | Selective laser melting High-strength Al–Mg–Sc alloys Metal matrix composites Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423002077 |
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