Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis
The superimposed magnetic field affects the microstructure and mechanical properties of additively manufactured metal parts. In this work, the samples were fabricated from Inconel 718 superalloy by directed energy deposition under a 0.2 T static field. The magnetohydrodynamic 1D model is proposed fo...
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| Online Access: | https://www.mdpi.com/1996-1944/14/18/5190 |
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| author | Aleksandr M. Filimonov Oleg A. Rogozin Oleg N. Dubinin Yulia O. Kuzminova Anastasia A. Shibalova Ilya V. Okulov Iskander S. Akhatov Stanislav A. Evlashin |
| author_facet | Aleksandr M. Filimonov Oleg A. Rogozin Oleg N. Dubinin Yulia O. Kuzminova Anastasia A. Shibalova Ilya V. Okulov Iskander S. Akhatov Stanislav A. Evlashin |
| author_sort | Aleksandr M. Filimonov |
| collection | DOAJ |
| description | The superimposed magnetic field affects the microstructure and mechanical properties of additively manufactured metal parts. In this work, the samples were fabricated from Inconel 718 superalloy by directed energy deposition under a 0.2 T static field. The magnetohydrodynamic 1D model is proposed for the estimation of a fluid flow inside a molten pool. According to the theoretical predictions, the fluid flow is slightly decreased by an applied field. The estimated thermoelectric magnetic convection in the mushy zone is shown to be negligible to change in subgrain size, but enough to reduce the hard-to-dissolve Nb-rich phase, thereby improving the average ultimate elongation from 23% to 27%. The obtained results confirm that an external static magnetic field can modify and enhance the mechanical properties of additively manufactured materials. |
| first_indexed | 2024-03-10T07:28:41Z |
| format | Article |
| id | doaj.art-1411ed08bbdc42bba95f6fdb3126e40d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T07:28:41Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-1411ed08bbdc42bba95f6fdb3126e40d2023-11-22T14:00:11ZengMDPI AGMaterials1996-19442021-09-011418519010.3390/ma14185190Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical AnalysisAleksandr M. Filimonov0Oleg A. Rogozin1Oleg N. Dubinin2Yulia O. Kuzminova3Anastasia A. Shibalova4Ilya V. Okulov5Iskander S. Akhatov6Stanislav A. Evlashin7Center for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaInstitute of Nanotechnology of Microelectronics of Russian Academy of Science, 119991 Moscow, RussiaLeibniz Institute for Materials Engineering—IWT, 28359 Bremen, GermanyCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaCenter for Design, Manufacturing & Materials, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaThe superimposed magnetic field affects the microstructure and mechanical properties of additively manufactured metal parts. In this work, the samples were fabricated from Inconel 718 superalloy by directed energy deposition under a 0.2 T static field. The magnetohydrodynamic 1D model is proposed for the estimation of a fluid flow inside a molten pool. According to the theoretical predictions, the fluid flow is slightly decreased by an applied field. The estimated thermoelectric magnetic convection in the mushy zone is shown to be negligible to change in subgrain size, but enough to reduce the hard-to-dissolve Nb-rich phase, thereby improving the average ultimate elongation from 23% to 27%. The obtained results confirm that an external static magnetic field can modify and enhance the mechanical properties of additively manufactured materials.https://www.mdpi.com/1996-1944/14/18/5190directed energy depositionMarangoni effectmagnetohydrodynamicsSeebeck effectthermoelectric magnetic convection |
| spellingShingle | Aleksandr M. Filimonov Oleg A. Rogozin Oleg N. Dubinin Yulia O. Kuzminova Anastasia A. Shibalova Ilya V. Okulov Iskander S. Akhatov Stanislav A. Evlashin Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis Materials directed energy deposition Marangoni effect magnetohydrodynamics Seebeck effect thermoelectric magnetic convection |
| title | Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis |
| title_full | Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis |
| title_fullStr | Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis |
| title_full_unstemmed | Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis |
| title_short | Modification of Mechanical Properties in Directed Energy Deposition by a Static Magnetic Field: Experimental and Theoretical Analysis |
| title_sort | modification of mechanical properties in directed energy deposition by a static magnetic field experimental and theoretical analysis |
| topic | directed energy deposition Marangoni effect magnetohydrodynamics Seebeck effect thermoelectric magnetic convection |
| url | https://www.mdpi.com/1996-1944/14/18/5190 |
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