Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting
In the current work, the possibility of the recycling of technogenic CoCrMo material by electron beam melting is investigated. The influence of thermodynamic and kinetic parameters (temperature and melting time) on the behavior of the main components of the alloy (Co, Cr, and Mo) and other elements...
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| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/12/4168 |
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| author | Katia Vutova Vladislava Stefanova Vania Vassileva Stela Atanasova-Vladimirova |
| author_facet | Katia Vutova Vladislava Stefanova Vania Vassileva Stela Atanasova-Vladimirova |
| author_sort | Katia Vutova |
| collection | DOAJ |
| description | In the current work, the possibility of the recycling of technogenic CoCrMo material by electron beam melting is investigated. The influence of thermodynamic and kinetic parameters (temperature and melting time) on the behavior of the main components of the alloy (Co, Cr, and Mo) and other elements (Fe, Mn, Si, W, and Nb) present in it, and on the microstructure of the ingots obtained after e-beam processing is studied. The vapor pressure of the alloy is determined taking into account the activities of the main alloy components (Co, Cr, and Mo). The relative volatility of the metal elements present in the alloy was also evaluated. An assessment of the influence of the temperature and the retention time on the degree of elements removal from CoCrMo technogenic material was made. The results obtained show that the highest degree of refining is achieved at 1860 K and a residence time of 20 min. The conducted EDS analysis of the more characteristic phases observed on the SEM images of the samples shows distinct micro-segregation in the matrix composition. |
| first_indexed | 2024-03-09T23:11:30Z |
| format | Article |
| id | doaj.art-29edc269cf414bf28c0cc5d65518416a |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T23:11:30Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-29edc269cf414bf28c0cc5d65518416a2023-11-23T17:43:49ZengMDPI AGMaterials1996-19442022-06-011512416810.3390/ma15124168Recycling of Technogenic CoCrMo Alloy by Electron Beam MeltingKatia Vutova0Vladislava Stefanova1Vania Vassileva2Stela Atanasova-Vladimirova3Institute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, BulgariaDepartment of Metallurgy of Non-Ferrous Metals and Semiconductors Technologies, University of Chemical Technology and Metallurgy, 1756 Sofia, BulgariaInstitute of Electronics, Bulgarian Academy of Sciences, 1784 Sofia, BulgariaAcademician Rostislav Kaishev Institute of Physical Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, BulgariaIn the current work, the possibility of the recycling of technogenic CoCrMo material by electron beam melting is investigated. The influence of thermodynamic and kinetic parameters (temperature and melting time) on the behavior of the main components of the alloy (Co, Cr, and Mo) and other elements (Fe, Mn, Si, W, and Nb) present in it, and on the microstructure of the ingots obtained after e-beam processing is studied. The vapor pressure of the alloy is determined taking into account the activities of the main alloy components (Co, Cr, and Mo). The relative volatility of the metal elements present in the alloy was also evaluated. An assessment of the influence of the temperature and the retention time on the degree of elements removal from CoCrMo technogenic material was made. The results obtained show that the highest degree of refining is achieved at 1860 K and a residence time of 20 min. The conducted EDS analysis of the more characteristic phases observed on the SEM images of the samples shows distinct micro-segregation in the matrix composition.https://www.mdpi.com/1996-1944/15/12/4168technogenic Co–Cr–Mo alloyelectron beam recyclingrefining processdegree of removal |
| spellingShingle | Katia Vutova Vladislava Stefanova Vania Vassileva Stela Atanasova-Vladimirova Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting Materials technogenic Co–Cr–Mo alloy electron beam recycling refining process degree of removal |
| title | Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting |
| title_full | Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting |
| title_fullStr | Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting |
| title_full_unstemmed | Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting |
| title_short | Recycling of Technogenic CoCrMo Alloy by Electron Beam Melting |
| title_sort | recycling of technogenic cocrmo alloy by electron beam melting |
| topic | technogenic Co–Cr–Mo alloy electron beam recycling refining process degree of removal |
| url | https://www.mdpi.com/1996-1944/15/12/4168 |
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