Investigation of copper alloy fabricated via laser powder bed fusion
Additive manufacturing (AM) techniques have been developing rapidly over the years. One of the AM methods is Laser Powder Bed Fusion (LPBF), which is widely used due to its high accuracy. It uses a laser source to melt metallic powder neatly in layers and can produce complex geometries. Cu-Cr-Zr...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2024
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| Online Access: | https://hdl.handle.net/10356/177757 |
| _version_ | 1811685379033530368 |
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| author | Goh, Chun Wei |
| author2 | Zhou Kun |
| author_facet | Zhou Kun Goh, Chun Wei |
| author_sort | Goh, Chun Wei |
| collection | NTU |
| description | Additive manufacturing (AM) techniques have been developing rapidly over the years. One of the AM methods is Laser Powder Bed Fusion (LPBF), which is widely used due to its high accuracy. It uses a laser source to melt metallic powder neatly in layers and can produce complex geometries.
Cu-Cr-Zr exhibits high thermal and electrical conductivity which have components from aerospace to nuclear industries. However, a research gap exists regarding the microstructural and mechanical properties of Cu-Cr-Zr fabricated by LPBF.
In this report, microstructural analysis and mechanical tests were conducted, including an investigation into the effects of heat treatment on Cu-Cr-Zr. Microstructural analysis was done using an optical microscope and scanning electron microscope on as-fabricated and heat-treated Cu-Cr-Zr specimens. Fractography analysis reveals that the precipitates of the heat-treated samples.
Additionally, mechanical tests such as tensile tests, Vickers hardness tests, and nanoindentation were done to characterize the mechanical properties of Cu-Cr-Zr heat treated at different temperatures.
The investigation indicates that the aging treatment of 480 ℃ for four hours is the most optimal to yield the highest ultimate tensile strength of 492.95 MPa for Cu-Cr-Zr printed by LPBF. These results contribute to a deeper understanding of the mechanical behavior of Cu-Cr-Zr. |
| first_indexed | 2024-10-01T04:43:35Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/177757 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:43:35Z |
| publishDate | 2024 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1777572024-06-01T16:54:17Z Investigation of copper alloy fabricated via laser powder bed fusion Goh, Chun Wei Zhou Kun School of Mechanical and Aerospace Engineering kzhou@ntu.edu.sg Engineering Additive manufacturing (AM) techniques have been developing rapidly over the years. One of the AM methods is Laser Powder Bed Fusion (LPBF), which is widely used due to its high accuracy. It uses a laser source to melt metallic powder neatly in layers and can produce complex geometries. Cu-Cr-Zr exhibits high thermal and electrical conductivity which have components from aerospace to nuclear industries. However, a research gap exists regarding the microstructural and mechanical properties of Cu-Cr-Zr fabricated by LPBF. In this report, microstructural analysis and mechanical tests were conducted, including an investigation into the effects of heat treatment on Cu-Cr-Zr. Microstructural analysis was done using an optical microscope and scanning electron microscope on as-fabricated and heat-treated Cu-Cr-Zr specimens. Fractography analysis reveals that the precipitates of the heat-treated samples. Additionally, mechanical tests such as tensile tests, Vickers hardness tests, and nanoindentation were done to characterize the mechanical properties of Cu-Cr-Zr heat treated at different temperatures. The investigation indicates that the aging treatment of 480 ℃ for four hours is the most optimal to yield the highest ultimate tensile strength of 492.95 MPa for Cu-Cr-Zr printed by LPBF. These results contribute to a deeper understanding of the mechanical behavior of Cu-Cr-Zr. Bachelor's degree 2024-05-31T05:35:22Z 2024-05-31T05:35:22Z 2024 Final Year Project (FYP) Goh, C. W. (2024). Investigation of copper alloy fabricated via laser powder bed fusion. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/177757 https://hdl.handle.net/10356/177757 en B306 application/pdf Nanyang Technological University |
| spellingShingle | Engineering Goh, Chun Wei Investigation of copper alloy fabricated via laser powder bed fusion |
| title | Investigation of copper alloy fabricated via laser powder bed fusion |
| title_full | Investigation of copper alloy fabricated via laser powder bed fusion |
| title_fullStr | Investigation of copper alloy fabricated via laser powder bed fusion |
| title_full_unstemmed | Investigation of copper alloy fabricated via laser powder bed fusion |
| title_short | Investigation of copper alloy fabricated via laser powder bed fusion |
| title_sort | investigation of copper alloy fabricated via laser powder bed fusion |
| topic | Engineering |
| url | https://hdl.handle.net/10356/177757 |
| work_keys_str_mv | AT gohchunwei investigationofcopperalloyfabricatedvialaserpowderbedfusion |