Selective laser melting of titanium-tantalum : microstructure and mechanical properties
The primary objective of this project is to characterize the mechanical and microstructural properties of titanium-tantalum (Ti-Ta) alloy in a 1:1 weight ratio produced by the selective laser melting (SLM) process. SLM is an additive manufacturing (AM) technique which produces parts layer-by-layer t...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2015
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| Online Access: | http://hdl.handle.net/10356/63979 |
| _version_ | 1811688360300773376 |
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| author | Chen, Joan Clara Si Yu |
| author2 | Yeong Wai Yee |
| author_facet | Yeong Wai Yee Chen, Joan Clara Si Yu |
| author_sort | Chen, Joan Clara Si Yu |
| collection | NTU |
| description | The primary objective of this project is to characterize the mechanical and microstructural properties of titanium-tantalum (Ti-Ta) alloy in a 1:1 weight ratio produced by the selective laser melting (SLM) process. SLM is an additive manufacturing (AM) technique which produces parts layer-by-layer through the use of a 3-dimensional (3D) computer-aided design (CAD) model. Fully dense functional parts of complex geometries and enhanced microstructures can be fabricated directly from SLM, making it suitable for a range of applications. Its ability to process metals with high melting points makes it a suitable process for the Ti-Ta alloy as tantalum has a very high melting point, which makes it unsuitable for conventional production methods. In the orthopedic industry, biomedical implants with a lower Young’s modulus were found to be more suitable for osseointegration. Upon addition of tantalum to titanium, tensile test results showed the Young’s modulus of SLM-produced Ti-Ta alloy was reduced to a value of 74.75 ± 5.30 GPa as compared to SLM-produced commercially pure titanium (cpTi) (107.46 ± 1.21 GPa) and Ti-6Al-4V (119.06 ± 13.40 GPa). The alloy also displayed a high value of strength, with ultimate tensile strength values of 924.64 ± 9.06 MPa, comparable to that of Ti-6Al-4V (1180.70 ± 102.74 MPa) and higher than cpTi (703.06 ± 16.22 MPa). Ti-Ta alloy also displayed a high hardness value of 284.50 ± 11.55 HV and 282.70 ± 10.29 HV in its x-y and y-z planes respectively. The optimal processing parameters for the Ti-50 wt% Ta alloy were also discovered through the course of this report. |
| first_indexed | 2024-10-01T05:30:58Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/63979 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:30:58Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/639792023-03-04T18:57:15Z Selective laser melting of titanium-tantalum : microstructure and mechanical properties Chen, Joan Clara Si Yu Yeong Wai Yee School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering The primary objective of this project is to characterize the mechanical and microstructural properties of titanium-tantalum (Ti-Ta) alloy in a 1:1 weight ratio produced by the selective laser melting (SLM) process. SLM is an additive manufacturing (AM) technique which produces parts layer-by-layer through the use of a 3-dimensional (3D) computer-aided design (CAD) model. Fully dense functional parts of complex geometries and enhanced microstructures can be fabricated directly from SLM, making it suitable for a range of applications. Its ability to process metals with high melting points makes it a suitable process for the Ti-Ta alloy as tantalum has a very high melting point, which makes it unsuitable for conventional production methods. In the orthopedic industry, biomedical implants with a lower Young’s modulus were found to be more suitable for osseointegration. Upon addition of tantalum to titanium, tensile test results showed the Young’s modulus of SLM-produced Ti-Ta alloy was reduced to a value of 74.75 ± 5.30 GPa as compared to SLM-produced commercially pure titanium (cpTi) (107.46 ± 1.21 GPa) and Ti-6Al-4V (119.06 ± 13.40 GPa). The alloy also displayed a high value of strength, with ultimate tensile strength values of 924.64 ± 9.06 MPa, comparable to that of Ti-6Al-4V (1180.70 ± 102.74 MPa) and higher than cpTi (703.06 ± 16.22 MPa). Ti-Ta alloy also displayed a high hardness value of 284.50 ± 11.55 HV and 282.70 ± 10.29 HV in its x-y and y-z planes respectively. The optimal processing parameters for the Ti-50 wt% Ta alloy were also discovered through the course of this report. Bachelor of Engineering (Mechanical Engineering) 2015-05-21T03:07:21Z 2015-05-21T03:07:21Z 2015 2015 Final Year Project (FYP) http://hdl.handle.net/10356/63979 en Nanyang Technological University 58 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering Chen, Joan Clara Si Yu Selective laser melting of titanium-tantalum : microstructure and mechanical properties |
| title | Selective laser melting of titanium-tantalum : microstructure and mechanical properties |
| title_full | Selective laser melting of titanium-tantalum : microstructure and mechanical properties |
| title_fullStr | Selective laser melting of titanium-tantalum : microstructure and mechanical properties |
| title_full_unstemmed | Selective laser melting of titanium-tantalum : microstructure and mechanical properties |
| title_short | Selective laser melting of titanium-tantalum : microstructure and mechanical properties |
| title_sort | selective laser melting of titanium tantalum microstructure and mechanical properties |
| topic | DRNTU::Engineering::Mechanical engineering |
| url | http://hdl.handle.net/10356/63979 |
| work_keys_str_mv | AT chenjoanclarasiyu selectivelasermeltingoftitaniumtantalummicrostructureandmechanicalproperties |