Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V)
Annealing of laser powder bed fusion (LPBF) processed Fe-49Co-2 V (Hiperco) samples at 865 °C for 4 h leads to a substantial improvement in its soft magnetic properties. While the as built LPBF samples exhibited relatively higher coercivities (Hc) ranging from 25.8 – 26.5 Oe, the annealed LPBF sampl...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/179834 |
| _version_ | 1826126699898601472 |
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| author | Varahabhatla, S. M. Chaudhary, V. Sharma, Abhishek Mantri, S. A. Joshi, S. S. Ramanujan, Raju V. Dahotre, Narendra B. Banerjee, R. |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Varahabhatla, S. M. Chaudhary, V. Sharma, Abhishek Mantri, S. A. Joshi, S. S. Ramanujan, Raju V. Dahotre, Narendra B. Banerjee, R. |
| author_sort | Varahabhatla, S. M. |
| collection | NTU |
| description | Annealing of laser powder bed fusion (LPBF) processed Fe-49Co-2 V (Hiperco) samples at 865 °C for 4 h leads to a substantial improvement in its soft magnetic properties. While the as built LPBF samples exhibited relatively higher coercivities (Hc) ranging from 25.8 – 26.5 Oe, the annealed LPBF samples showed significantly lower coercivities (Hc) of 6.9 – 10.8 Oe. These lower Hc values can not only be attributed to the 15–20 times larger grain sizes, but also the higher degree of B2 ordering in the annealed condition. The enhanced degree of B2 ordering also increases the saturation magnetization (Ms), from 213 to 228 emu/g, in samples processed with a laser fluence (energy/density) of 3.4 J/mm2. These results reveal the underlying mechanisms leading to an enhancement of soft magnetic properties in LPBF processed Hiperco via annealing-induced microstructural control. |
| first_indexed | 2024-10-01T06:56:39Z |
| format | Journal Article |
| id | ntu-10356/179834 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:56:39Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1798342024-08-30T15:45:34Z Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) Varahabhatla, S. M. Chaudhary, V. Sharma, Abhishek Mantri, S. A. Joshi, S. S. Ramanujan, Raju V. Dahotre, Narendra B. Banerjee, R. School of Materials Science and Engineering Engineering Additive manufacturing Laser powder bed fusion Annealing of laser powder bed fusion (LPBF) processed Fe-49Co-2 V (Hiperco) samples at 865 °C for 4 h leads to a substantial improvement in its soft magnetic properties. While the as built LPBF samples exhibited relatively higher coercivities (Hc) ranging from 25.8 – 26.5 Oe, the annealed LPBF samples showed significantly lower coercivities (Hc) of 6.9 – 10.8 Oe. These lower Hc values can not only be attributed to the 15–20 times larger grain sizes, but also the higher degree of B2 ordering in the annealed condition. The enhanced degree of B2 ordering also increases the saturation magnetization (Ms), from 213 to 228 emu/g, in samples processed with a laser fluence (energy/density) of 3.4 J/mm2. These results reveal the underlying mechanisms leading to an enhancement of soft magnetic properties in LPBF processed Hiperco via annealing-induced microstructural control. Agency for Science, Technology and Research (A*STAR) Published version The authors acknowledge the infrastructure and support of Center for Agile & Adaptive and Additive Manufacturing (CAAAM) funded through State of Texas Appropriation #190405-105-805008-220 and Materials Research Facility (MRF) at the University of North Texas. This work is also supported by the AME Programmatic Fund by the Agency for Science, Technology and Research, Singapore under Grant No. A1898b0043, and Production Area of Advance (AoA) at Chalmers University of Technology. 2024-08-27T02:30:21Z 2024-08-27T02:30:21Z 2024 Journal Article Varahabhatla, S. M., Chaudhary, V., Sharma, A., Mantri, S. A., Joshi, S. S., Ramanujan, R. V., Dahotre, N. B. & Banerjee, R. (2024). Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V). Additive Manufacturing Letters, 9, 100208-. https://dx.doi.org/10.1016/j.addlet.2024.100208 2772-3690 https://hdl.handle.net/10356/179834 10.1016/j.addlet.2024.100208 2-s2.0-85190333482 9 100208 en A1898b0043 Additive Manufacturing Letters © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/bync/4.0/). application/pdf |
| spellingShingle | Engineering Additive manufacturing Laser powder bed fusion Varahabhatla, S. M. Chaudhary, V. Sharma, Abhishek Mantri, S. A. Joshi, S. S. Ramanujan, Raju V. Dahotre, Narendra B. Banerjee, R. Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) |
| title | Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) |
| title_full | Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) |
| title_fullStr | Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) |
| title_full_unstemmed | Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) |
| title_short | Influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed Hiperco (Fe-49Co-2V) |
| title_sort | influence of annealing on enhancing soft magnetic properties in laser powder bed fusion processed hiperco fe 49co 2v |
| topic | Engineering Additive manufacturing Laser powder bed fusion |
| url | https://hdl.handle.net/10356/179834 |
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