Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing
New manufacturing processes for metal parts such as additive manufacturing (AM) provide a technological development for the aeronautical and aerospace industries, since these AM processes are a means to reduce the weight of the parts, which generate cost savings. AM techniques such as Laser Powder B...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Molecular Diversity Preservation International
2023
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| Online Access: | http://eprints.uanl.mx/25118/2/25118.pdf |
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| author | Estupiñan López, Francisco Humberto Orquiz Muela, Carlos Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Bautista Margulis, Raúl German Nieves Mendoza, Demetrio Maldonado Bandala, Erick Almeraya Calderón, Facundo Lopes, Amit Joe |
| author_facet | Estupiñan López, Francisco Humberto Orquiz Muela, Carlos Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Bautista Margulis, Raúl German Nieves Mendoza, Demetrio Maldonado Bandala, Erick Almeraya Calderón, Facundo Lopes, Amit Joe |
| author_sort | Estupiñan López, Francisco Humberto |
| collection | Repositorio Institucional |
| description | New manufacturing processes for metal parts such as additive manufacturing (AM) provide a technological development for the aeronautical and aerospace industries, since these AM processes are a means to reduce the weight of the parts, which generate cost savings. AM techniques such as Laser Powder Bed Fusions (LPBF) and Electron Beam Fusion (EBM), provided an improvement in mechanical properties, corrosion resistance, and thermal stability at temperatures below 400 °C, in comparison to conventional methods. This research aimed to study the oxidation kinetics of Ti-6Al-4V alloys by conventional and Electron Beam Additive Manufacturing. The thermogravimetric analysis was performed at temperatures of 600 °C, 800 °C, and 900 °C, having a heating rate of 25 °C/min and oxidation time of 24 h. The microstructural analysis was carried out by thermogravimetric analysis. Thickness and morphology of oxide layers were analyzed by field emission scanning electron microscope, phase identification (before and after the oxidation process) was realized by X-ray diffraction at room temperature and hardness measurements were made in cross section. Results indicated that the oxidation kinetics of Ti-6Al-4V alloys fabricated by EBM was similar to conventional processing and obeyed a parabolic or quasi-parabolic kinetics. The samples oxidized at 600 °C for 24 h presented the lowest hardness values (from 350 to 470 HV). At oxidation temperatures of 800 and 900 °C, however, highest hardness values (from 870 close to the alpha-case interface up to 300 HV in base metal) were found on the surface and gradually decreased towards the center of the base alloy. This may be explained by different microstructures presented in the manufacturing processes |
| format | Article |
| id | eprints-25118 |
| institution | UANL |
| language | English |
| publishDate | 2023 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-251182025-07-03T14:21:31Z http://eprints.uanl.mx/25118/ Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing Estupiñan López, Francisco Humberto Orquiz Muela, Carlos Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Bautista Margulis, Raúl German Nieves Mendoza, Demetrio Maldonado Bandala, Erick Almeraya Calderón, Facundo Lopes, Amit Joe Ingeniería y Tecnología TA Ingeniería General y Civil New manufacturing processes for metal parts such as additive manufacturing (AM) provide a technological development for the aeronautical and aerospace industries, since these AM processes are a means to reduce the weight of the parts, which generate cost savings. AM techniques such as Laser Powder Bed Fusions (LPBF) and Electron Beam Fusion (EBM), provided an improvement in mechanical properties, corrosion resistance, and thermal stability at temperatures below 400 °C, in comparison to conventional methods. This research aimed to study the oxidation kinetics of Ti-6Al-4V alloys by conventional and Electron Beam Additive Manufacturing. The thermogravimetric analysis was performed at temperatures of 600 °C, 800 °C, and 900 °C, having a heating rate of 25 °C/min and oxidation time of 24 h. The microstructural analysis was carried out by thermogravimetric analysis. Thickness and morphology of oxide layers were analyzed by field emission scanning electron microscope, phase identification (before and after the oxidation process) was realized by X-ray diffraction at room temperature and hardness measurements were made in cross section. Results indicated that the oxidation kinetics of Ti-6Al-4V alloys fabricated by EBM was similar to conventional processing and obeyed a parabolic or quasi-parabolic kinetics. The samples oxidized at 600 °C for 24 h presented the lowest hardness values (from 350 to 470 HV). At oxidation temperatures of 800 and 900 °C, however, highest hardness values (from 870 close to the alpha-case interface up to 300 HV in base metal) were found on the surface and gradually decreased towards the center of the base alloy. This may be explained by different microstructures presented in the manufacturing processes Molecular Diversity Preservation International 2023-01-30 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/25118/2/25118.pdf http://eprints.uanl.mx/25118/2.haspreviewThumbnailVersion/25118.pdf Estupiñan López, Francisco Humberto y Orquiz Muela, Carlos y Gaona Tiburcio, Citlalli y Cabral Miramontes, José Ángel y Bautista Margulis, Raúl German y Nieves Mendoza, Demetrio y Maldonado Bandala, Erick y Almeraya Calderón, Facundo y Lopes, Amit Joe (2023) Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing. Materials, 16 (3). pp. 1-15. ISSN 1996-1944 https://doi.org/10.3390/ma16031187 https://doi.org/10.3390/ma16031187 |
| spellingShingle | Ingeniería y Tecnología TA Ingeniería General y Civil Estupiñan López, Francisco Humberto Orquiz Muela, Carlos Gaona Tiburcio, Citlalli Cabral Miramontes, José Ángel Bautista Margulis, Raúl German Nieves Mendoza, Demetrio Maldonado Bandala, Erick Almeraya Calderón, Facundo Lopes, Amit Joe Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing |
| title_full | Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing |
| title_fullStr | Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing |
| title_full_unstemmed | Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing |
| title_short | Oxidation Kinetics of Ti-6Al-4V Alloys by Conventional and Electron Beam Additive Manufacturing |
| title_sort | oxidation kinetics of ti 6al 4v alloys by conventional and electron beam additive manufacturing |
| topic | Ingeniería y Tecnología TA Ingeniería General y Civil |
| url | http://eprints.uanl.mx/25118/2/25118.pdf |
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