Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser
A few components used in the aerospace and petrochemical industries serve in corrosive environments at high temperatures. Corrosion-resistant metals or unique processes, such as coating and fusion welding, are required to improve the performance of the parts. We have used laser powder bed fusion (LP...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/173141 |
| _version_ | 1811692803898474496 |
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| author | Yao, Liming Ramesh, Aditya Fan, Zongheng Xiao, Zhongmin Li, Guanhai Zhuang, Quihui Qiao, Jing |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Yao, Liming Ramesh, Aditya Fan, Zongheng Xiao, Zhongmin Li, Guanhai Zhuang, Quihui Qiao, Jing |
| author_sort | Yao, Liming |
| collection | NTU |
| description | A few components used in the aerospace and petrochemical industries serve in corrosive environments at high temperatures. Corrosion-resistant metals or unique processes, such as coating and fusion welding, are required to improve the performance of the parts. We have used laser powder bed fusion (LPBF) technology to deposit a 5 mm thick corrosion-resistant CoCrMo layer on a high-strength IN625 substrate to improve the corrosion resistance of the core parts of a valve. This study found that when the laser volumetric energy density (EV) ≤ 20, the tensile strength increases linearly with the increase in EV, and the slope of the curve is approximately 85°. The larger the slope, the greater the impact of EV on the intensity. When EV > 20, the sample strength reaches the maximum tensile strength. When the EV increases from 0 to 20, the fracture position of the sample shifts from CoCrMo to IN625. When EV ≤ 38, the strain increases linearly with the increase in EV, and the slope of the curve is approximately 67.5°. The sample strain rate reaches the maximum when EV > 38. Therefore, for an optimal sample strength and strain, EV should be greater than 38. This study provides theoretical and technical support for the manufacturing of corrosion-resistant dissimilar metal parts using LPBF technology. |
| first_indexed | 2024-10-01T06:41:36Z |
| format | Journal Article |
| id | ntu-10356/173141 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:41:36Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1731412024-01-20T16:48:30Z Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser Yao, Liming Ramesh, Aditya Fan, Zongheng Xiao, Zhongmin Li, Guanhai Zhuang, Quihui Qiao, Jing School of Mechanical and Aerospace Engineering Engineering::Mechanical engineering Additive Manufacturing Dissimilar Alloy A few components used in the aerospace and petrochemical industries serve in corrosive environments at high temperatures. Corrosion-resistant metals or unique processes, such as coating and fusion welding, are required to improve the performance of the parts. We have used laser powder bed fusion (LPBF) technology to deposit a 5 mm thick corrosion-resistant CoCrMo layer on a high-strength IN625 substrate to improve the corrosion resistance of the core parts of a valve. This study found that when the laser volumetric energy density (EV) ≤ 20, the tensile strength increases linearly with the increase in EV, and the slope of the curve is approximately 85°. The larger the slope, the greater the impact of EV on the intensity. When EV > 20, the sample strength reaches the maximum tensile strength. When the EV increases from 0 to 20, the fracture position of the sample shifts from CoCrMo to IN625. When EV ≤ 38, the strain increases linearly with the increase in EV, and the slope of the curve is approximately 67.5°. The sample strain rate reaches the maximum when EV > 38. Therefore, for an optimal sample strength and strain, EV should be greater than 38. This study provides theoretical and technical support for the manufacturing of corrosion-resistant dissimilar metal parts using LPBF technology. Nanyang Technological University Published version This research was funded by Singapore Centre for 3D Printing (SC3DP) [001163-00010]; State Key Laboratory of Robotics and Systems (HIT) [SKLRS-2023-KF-24]; State Key Laboratory of Infrared Physics [SITP-NLIST-YB-2023-16]; National Key Research and Development Program of China [2022YFB460001602]; and International Scientific and Technological Cooperation project [GUIQ0700500523]. 2024-01-15T05:13:17Z 2024-01-15T05:13:17Z 2023 Journal Article Yao, L., Ramesh, A., Fan, Z., Xiao, Z., Li, G., Zhuang, Q. & Qiao, J. (2023). Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser. Materials, 16(19), 6456-. https://dx.doi.org/10.3390/ma16196456 1996-1944 https://hdl.handle.net/10356/173141 10.3390/ma16196456 37834595 2-s2.0-85173987853 19 16 6456 en 001163-00010 Materials © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). application/pdf |
| spellingShingle | Engineering::Mechanical engineering Additive Manufacturing Dissimilar Alloy Yao, Liming Ramesh, Aditya Fan, Zongheng Xiao, Zhongmin Li, Guanhai Zhuang, Quihui Qiao, Jing Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| title | Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| title_full | Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| title_fullStr | Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| title_full_unstemmed | Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| title_short | Interface analysis between inconel 625 and cobalt-chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| title_sort | interface analysis between inconel 625 and cobalt chromium alloy fabricated by powder bed fusion using pulsed wave laser |
| topic | Engineering::Mechanical engineering Additive Manufacturing Dissimilar Alloy |
| url | https://hdl.handle.net/10356/173141 |
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