The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion
Laser powder bed fusion (LPBF) is a kind of popular additive manufacturing process to fabricate sophisticated components in recent years. However, it is still challenging to fabricate copper alloys due to excellent thermal properties and high reflective to laser beams during LPBF process. As such, g...
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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/S223878542300220X |
| _version_ | 1797858743009935360 |
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| author | Haofeng Xie Xiangpeng Tang Xiaohong Chen Fujia Sun Liyan Dong Yinxun Tan Hao Chu Honglei Zhou Ping Liu Shaoli Fu |
| author_facet | Haofeng Xie Xiangpeng Tang Xiaohong Chen Fujia Sun Liyan Dong Yinxun Tan Hao Chu Honglei Zhou Ping Liu Shaoli Fu |
| author_sort | Haofeng Xie |
| collection | DOAJ |
| description | Laser powder bed fusion (LPBF) is a kind of popular additive manufacturing process to fabricate sophisticated components in recent years. However, it is still challenging to fabricate copper alloys due to excellent thermal properties and high reflective to laser beams during LPBF process. As such, green laser beam has been employed in present work to fabricate copper-chromium-zirconium (CuCrZr) alloys in present work. To enhance performance, post-heat-treatment was employed on the alloys. The mechanical properties in present work are superior to most of LPBF-built CuCrZr alloys using conventional infrared laser. So far, most of studies about additive manufactured (AM-ed) CuCrZr alloys only focus properties of alloys perpendicular to build directions. Hence, the mechanical properties and thermal properties of LPBF-built alloys along different build orientations were investigated. The slender columnar grains were observed. Nevertheless, heat-treated samples along transverse directions own better mechanical properties (yield strength (YS): 505 MPa, ultimate tensile strength (UTS): 585 MPa, Elongation (EL): 14.4%) and better thermal properties (307 W/mK). While the heat-treated samples along build directions own lower strength (YS: 472 MPa, UTS: 495 MPa) with better ductility (EL: 17.8%) and poor thermal conductivity (255 W/mK). The mechanical and thermal anisotropy attributes the stronger {110} grain orientation and lower fraction of low angle grain boundaries (LAGBs) along build directions due to the columnar structure with fine equiaxed grains. |
| first_indexed | 2024-04-09T21:19:20Z |
| format | Article |
| id | doaj.art-48d0c74bb4fc44fda45f8d5a30ac1317 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:19:20Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-48d0c74bb4fc44fda45f8d5a30ac13172023-03-28T06:47:06ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012333223336The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusionHaofeng Xie0Xiangpeng Tang1Xiaohong Chen2Fujia Sun3Liyan Dong4Yinxun Tan5Hao Chu6Honglei Zhou7Ping Liu8Shaoli Fu9State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing, 100088, China; GRIMAT Engineering Institute Co., Ltd., Beijing, 101407, China; Corresponding author. State Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing, 100088, China.School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaState Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing, 100088, China; GRIMAT Engineering Institute Co., Ltd., Beijing, 101407, China; General Research Institute for Nonferrous Metals, Beijing, 100088, ChinaState Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing, 100088, China; GRIMAT Engineering Institute Co., Ltd., Beijing, 101407, China; General Research Institute for Nonferrous Metals, Beijing, 100088, ChinaState Key Laboratory of Nonferrous Metals and Processes, China GRINM Group Co., Ltd., Beijing, 100088, China; GRIMAT Engineering Institute Co., Ltd., Beijing, 101407, China; General Research Institute for Nonferrous Metals, Beijing, 100088, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, ChinaLaser powder bed fusion (LPBF) is a kind of popular additive manufacturing process to fabricate sophisticated components in recent years. However, it is still challenging to fabricate copper alloys due to excellent thermal properties and high reflective to laser beams during LPBF process. As such, green laser beam has been employed in present work to fabricate copper-chromium-zirconium (CuCrZr) alloys in present work. To enhance performance, post-heat-treatment was employed on the alloys. The mechanical properties in present work are superior to most of LPBF-built CuCrZr alloys using conventional infrared laser. So far, most of studies about additive manufactured (AM-ed) CuCrZr alloys only focus properties of alloys perpendicular to build directions. Hence, the mechanical properties and thermal properties of LPBF-built alloys along different build orientations were investigated. The slender columnar grains were observed. Nevertheless, heat-treated samples along transverse directions own better mechanical properties (yield strength (YS): 505 MPa, ultimate tensile strength (UTS): 585 MPa, Elongation (EL): 14.4%) and better thermal properties (307 W/mK). While the heat-treated samples along build directions own lower strength (YS: 472 MPa, UTS: 495 MPa) with better ductility (EL: 17.8%) and poor thermal conductivity (255 W/mK). The mechanical and thermal anisotropy attributes the stronger {110} grain orientation and lower fraction of low angle grain boundaries (LAGBs) along build directions due to the columnar structure with fine equiaxed grains.http://www.sciencedirect.com/science/article/pii/S223878542300220XCuCrZrLaser powder bed fusionBuild orientationThermal conductivitiesMechanical propertiesElectron backscatter diffraction |
| spellingShingle | Haofeng Xie Xiangpeng Tang Xiaohong Chen Fujia Sun Liyan Dong Yinxun Tan Hao Chu Honglei Zhou Ping Liu Shaoli Fu The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion Journal of Materials Research and Technology CuCrZr Laser powder bed fusion Build orientation Thermal conductivities Mechanical properties Electron backscatter diffraction |
| title | The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion |
| title_full | The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion |
| title_fullStr | The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion |
| title_full_unstemmed | The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion |
| title_short | The effect of build orientations on mechanical and thermal properties on CuCrZr alloys fabricated by laser powder bed fusion |
| title_sort | effect of build orientations on mechanical and thermal properties on cucrzr alloys fabricated by laser powder bed fusion |
| topic | CuCrZr Laser powder bed fusion Build orientation Thermal conductivities Mechanical properties Electron backscatter diffraction |
| url | http://www.sciencedirect.com/science/article/pii/S223878542300220X |
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