Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys
The influence of the synergistic effect of the addition of Ce–Nb–V and Ce–V–Nb on the microstructural behavior and oxidation resistance at 800 °C to produce new austenitic steels (ASS) was investigated. Thermodynamic modeling (Thermo-Calc) was employed to optimize the composition, and their producti...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425010567 |
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| author | J. Ramirez F. Zuñiga S. Shiva Samhitha Srivathsava Surabhi A. Ríos R J.P. Sanhueza A.F. Jaramillo A.G. Onate M.F. Meléndrez D. Rojas |
| author_facet | J. Ramirez F. Zuñiga S. Shiva Samhitha Srivathsava Surabhi A. Ríos R J.P. Sanhueza A.F. Jaramillo A.G. Onate M.F. Meléndrez D. Rojas |
| author_sort | J. Ramirez |
| collection | DOAJ |
| description | The influence of the synergistic effect of the addition of Ce–Nb–V and Ce–V–Nb on the microstructural behavior and oxidation resistance at 800 °C to produce new austenitic steels (ASS) was investigated. Thermodynamic modeling (Thermo-Calc) was employed to optimize the composition, and their production was carried out from stainless steel scrap and ferroalloys in the open atmosphere induction melting process to contribute to the circular economy. The morphology, evolution, and mechanisms of the microstructure of the zone affected by oxidation were determined by applying various characterization techniques such as X-ray diffraction, electron spectroscopy, Raman spectroscopy, scanning electron microscopy (XRD, XPS, RAMAN, and SEM) and thermodynamic calculations. The oxidation kinetics indicated that adding Ce–Nb–V synergistically promotes a decrease in the oxidation rate and more adherent oxides. However, in the Ce–V–Nb system, a higher oxidation rate was presented, attributed to a high V content, which reduces the anticorrosive behavior of the alloy. In general, there is a high resistance to oxidation in the ASS produced, which is improved by the formation of oxide layers enhanced by the presence of a stable and complete spinel structure. In this sense, the addition of Ce improves grain refinement, contributes to the formation of Ce-rich inclusions with good oxide anchoring properties, and allows selective segregation in Mo and Cr diffusion, allowing a decrease in intermetallic secondary phases. |
| format | Article |
| id | doaj-art-1ebe9ece898141c59ee64b1729433684 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-1ebe9ece898141c59ee64b17294336842025-08-20T02:20:09ZengElsevierJournal of Materials Research and Technology2238-78542025-05-01366295631510.1016/j.jmrt.2025.04.235Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloysJ. Ramirez0F. Zuñiga1S. Shiva Samhitha2Srivathsava Surabhi3A. Ríos R4J.P. Sanhueza5A.F. Jaramillo6A.G. Onate7M.F. Meléndrez8D. Rojas9Facultad de Ingeniería, Universidad San Sebastián, Lientur 1457, Concepción, Chile; Corresponding author.Department of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, Edmundo Larenas 315, Concepción, ChileDepartment of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, Edmundo Larenas 315, Concepción, ChileDepartment of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, Edmundo Larenas 315, Concepción, ChilePedagogical and Technological University of Colombia, Boyacá, Tunja, ColombiaDepartment of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, Edmundo Larenas 315, Concepción, ChileDepartamento de Ingeniería Mecánica, Universidad de Córdoba, Cr 6 #76-103, Montería, 230002, Colombia; Department of Mechanical Engineering, Universidad de La Frontera, 01145 Francisco Salazar, Temuco, 4780000, ChileDepartment of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, Edmundo Larenas 315, Concepción, ChileFacultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, Campus Las Tres Pascualas, Lientur 1457, Concepción, 4060000, ChileDepartment of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepción, Edmundo Larenas 315, Concepción, Chile; Corresponding author.The influence of the synergistic effect of the addition of Ce–Nb–V and Ce–V–Nb on the microstructural behavior and oxidation resistance at 800 °C to produce new austenitic steels (ASS) was investigated. Thermodynamic modeling (Thermo-Calc) was employed to optimize the composition, and their production was carried out from stainless steel scrap and ferroalloys in the open atmosphere induction melting process to contribute to the circular economy. The morphology, evolution, and mechanisms of the microstructure of the zone affected by oxidation were determined by applying various characterization techniques such as X-ray diffraction, electron spectroscopy, Raman spectroscopy, scanning electron microscopy (XRD, XPS, RAMAN, and SEM) and thermodynamic calculations. The oxidation kinetics indicated that adding Ce–Nb–V synergistically promotes a decrease in the oxidation rate and more adherent oxides. However, in the Ce–V–Nb system, a higher oxidation rate was presented, attributed to a high V content, which reduces the anticorrosive behavior of the alloy. In general, there is a high resistance to oxidation in the ASS produced, which is improved by the formation of oxide layers enhanced by the presence of a stable and complete spinel structure. In this sense, the addition of Ce improves grain refinement, contributes to the formation of Ce-rich inclusions with good oxide anchoring properties, and allows selective segregation in Mo and Cr diffusion, allowing a decrease in intermetallic secondary phases.http://www.sciencedirect.com/science/article/pii/S2238785425010567Austenitic stainless steelsRare earth elements (Ce)Carbon stabilizers (NbV)Heart resistantHigh temperature corrosion |
| spellingShingle | J. Ramirez F. Zuñiga S. Shiva Samhitha Srivathsava Surabhi A. Ríos R J.P. Sanhueza A.F. Jaramillo A.G. Onate M.F. Meléndrez D. Rojas Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys Journal of Materials Research and Technology Austenitic stainless steels Rare earth elements (Ce) Carbon stabilizers (Nb V) Heart resistant High temperature corrosion |
| title | Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys |
| title_full | Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys |
| title_fullStr | Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys |
| title_full_unstemmed | Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys |
| title_short | Unraveling the synergistic influence of Nb, V, and Ce on corrosion and high temperature performance of austenitic alloys |
| title_sort | unraveling the synergistic influence of nb v and ce on corrosion and high temperature performance of austenitic alloys |
| topic | Austenitic stainless steels Rare earth elements (Ce) Carbon stabilizers (Nb V) Heart resistant High temperature corrosion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425010567 |
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