Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing
NiTiTa ternary shape memory alloy is a potential biomedical material, and wire arc additive manufacturing (WAAM) technology has been widely used in the research of NiTi alloys. It is of great significance to study the effect of Ta addition on the microstructure and properties of WAAM NiTi alloys. In...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Shanghai Jiao Tong University
2024-03-01
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| Series: | Shanghai Jiaotong Daxue xuebao |
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| Online Access: | https://xuebao.sjtu.edu.cn/article/2024/1006-2467/1006-2467-58-3-382.shtml |
| _version_ | 1797237763105357824 |
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| author | ZUO Xinde, CHEN Yi, LI Yang, LUO Zhen, AO Sansan |
| author_facet | ZUO Xinde, CHEN Yi, LI Yang, LUO Zhen, AO Sansan |
| author_sort | ZUO Xinde, CHEN Yi, LI Yang, LUO Zhen, AO Sansan |
| collection | DOAJ |
| description | NiTiTa ternary shape memory alloy is a potential biomedical material, and wire arc additive manufacturing (WAAM) technology has been widely used in the research of NiTi alloys. It is of great significance to study the effect of Ta addition on the microstructure and properties of WAAM NiTi alloys. In this paper, 5-layer NiTi and NiTiTa alloy walls were fabricated by WAAM technology, and the effects of Ta addition on the microstructure, phase transformation behavior, mechanical properties and corrosion resistance of NiTi alloys were systematically studied. The results show that the grains of the NiTiTa alloy are remarkably refined compared with NiTi alloys, and the precipitation phase of NiTiTa alloy changes from Ni3Ti of NiTi alloy to Ni(Ti, Ta)2. In addition, the phase transition temperature of the NiTiTa alloy is significantly increased, which makes the phase at room temperature change from the complete austenite phase (B2) to a mixed phase of austenite (B2) and martensite (B19'). Tensile tests show that the tensile strength of NiTiTa samples is increased by 9.5% compared with NiTi samples, but the elongation is decreased by 6.8%. The polarization curve results show that the NiTiTa alloy has a higher corrosion potential and a lower corrosion current density, which means a significantly improved corrosion resistance. This paper lays a theoretical foundation for promoting the application of NiTiTa alloys fabricated by WAAM technology in the biomedical field. |
| first_indexed | 2024-04-24T17:24:55Z |
| format | Article |
| id | doaj.art-73b3d35d94ac48249ba53824edffa3ae |
| institution | Directory Open Access Journal |
| issn | 1006-2467 |
| language | zho |
| last_indexed | 2024-04-24T17:24:55Z |
| publishDate | 2024-03-01 |
| publisher | Editorial Office of Journal of Shanghai Jiao Tong University |
| record_format | Article |
| series | Shanghai Jiaotong Daxue xuebao |
| spelling | doaj.art-73b3d35d94ac48249ba53824edffa3ae2024-03-28T07:32:43ZzhoEditorial Office of Journal of Shanghai Jiao Tong UniversityShanghai Jiaotong Daxue xuebao1006-24672024-03-0158338239010.16183/j.cnki.jsjtu.2022.254Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive ManufacturingZUO Xinde, CHEN Yi, LI Yang, LUO Zhen, AO Sansan0School of Materials Science and Engineering, Tianjin University, Tianjin 300350, ChinaNiTiTa ternary shape memory alloy is a potential biomedical material, and wire arc additive manufacturing (WAAM) technology has been widely used in the research of NiTi alloys. It is of great significance to study the effect of Ta addition on the microstructure and properties of WAAM NiTi alloys. In this paper, 5-layer NiTi and NiTiTa alloy walls were fabricated by WAAM technology, and the effects of Ta addition on the microstructure, phase transformation behavior, mechanical properties and corrosion resistance of NiTi alloys were systematically studied. The results show that the grains of the NiTiTa alloy are remarkably refined compared with NiTi alloys, and the precipitation phase of NiTiTa alloy changes from Ni3Ti of NiTi alloy to Ni(Ti, Ta)2. In addition, the phase transition temperature of the NiTiTa alloy is significantly increased, which makes the phase at room temperature change from the complete austenite phase (B2) to a mixed phase of austenite (B2) and martensite (B19'). Tensile tests show that the tensile strength of NiTiTa samples is increased by 9.5% compared with NiTi samples, but the elongation is decreased by 6.8%. The polarization curve results show that the NiTiTa alloy has a higher corrosion potential and a lower corrosion current density, which means a significantly improved corrosion resistance. This paper lays a theoretical foundation for promoting the application of NiTiTa alloys fabricated by WAAM technology in the biomedical field.https://xuebao.sjtu.edu.cn/article/2024/1006-2467/1006-2467-58-3-382.shtmlnitita alloyswire arc additive manufacturing (waam)microstructurephase transformation behaviormechanical property |
| spellingShingle | ZUO Xinde, CHEN Yi, LI Yang, LUO Zhen, AO Sansan Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing Shanghai Jiaotong Daxue xuebao nitita alloys wire arc additive manufacturing (waam) microstructure phase transformation behavior mechanical property |
| title | Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing |
| title_full | Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing |
| title_fullStr | Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing |
| title_full_unstemmed | Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing |
| title_short | Effect of Adding Tantalum on Microstructure and Properties of NiTi Shape Memory Alloy Manufactured by Wire Arc Additive Manufacturing |
| title_sort | effect of adding tantalum on microstructure and properties of niti shape memory alloy manufactured by wire arc additive manufacturing |
| topic | nitita alloys wire arc additive manufacturing (waam) microstructure phase transformation behavior mechanical property |
| url | https://xuebao.sjtu.edu.cn/article/2024/1006-2467/1006-2467-58-3-382.shtml |
| work_keys_str_mv | AT zuoxindechenyiliyangluozhenaosansan effectofaddingtantalumonmicrostructureandpropertiesofnitishapememoryalloymanufacturedbywirearcadditivemanufacturing |