Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing
Controlling the microstructure of the Ti–35Nb–7Zr–5Ta alloy is fundamental for enhancing its strength and corrosion resistance in biomedical applications. This study examines how microstructural evolution through equal-channel angular pressing (ECAP) at room temperature and 300 °C influences Young&#...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425001371 |
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| author | R. Silva J. Silva C.C. Viana C.R.M. Afonso P. Hammer D.C.C. Magalhães A.H. Plaine C.A.D. Rovere |
| author_facet | R. Silva J. Silva C.C. Viana C.R.M. Afonso P. Hammer D.C.C. Magalhães A.H. Plaine C.A.D. Rovere |
| author_sort | R. Silva |
| collection | DOAJ |
| description | Controlling the microstructure of the Ti–35Nb–7Zr–5Ta alloy is fundamental for enhancing its strength and corrosion resistance in biomedical applications. This study examines how microstructural evolution through equal-channel angular pressing (ECAP) at room temperature and 300 °C influences Young's modulus, hardness, and corrosion resistance. ECAP refines grain size and promotes nanocrystalline β-phase grains, α'' phase decomposition, and ω phase precipitation. Room temperature ECAP decreases Young's modulus by reducing the β-phase stability due to deformation, while 300 °C processing enhances hardness and Young's modulus due to finer microstructure and higher ω-phase fraction. Grain refinement accelerates passivation kinetics, enhancing corrosion resistance with a thicker and less defective passive film, especially at 300 °C, without significant changes in the elemental composition of the outer passive film. |
| format | Article |
| id | doaj-art-c0a1fc2b095e46cb8ad3ed58b00cf962 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-c0a1fc2b095e46cb8ad3ed58b00cf9622025-01-28T04:14:41ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013520552067Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressingR. Silva0J. Silva1C.C. Viana2C.R.M. Afonso3P. Hammer4D.C.C. Magalhães5A.H. Plaine6C.A.D. Rovere7Munir Rachid Corrosion Laboratory, Department of Materials Engineering, Federal University of São Carlos, Rodovia Washington Luis Km 235, 13565-905, São Carlos, SP, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, Brazil; Corresponding author. Munir Rachid Corrosion Laboratory, Department of Materials Engineering, Federal University of São Carlos, Rodovia Washington Luis Km 235, 13565-905, São Carlos, SP, Brazil.Department of Mechanical Engineering, State University of Santa Catarina, Paulo Malschitzki, 89219710, Joinville, SC, BrazilDepartment of Mechanical Engineering, State University of Santa Catarina, Paulo Malschitzki, 89219710, Joinville, SC, BrazilMunir Rachid Corrosion Laboratory, Department of Materials Engineering, Federal University of São Carlos, Rodovia Washington Luis Km 235, 13565-905, São Carlos, SP, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, BrazilInstitute of Chemistry, São Paulo State University, Araraquara, 14800-900, SP, BrazilMunir Rachid Corrosion Laboratory, Department of Materials Engineering, Federal University of São Carlos, Rodovia Washington Luis Km 235, 13565-905, São Carlos, SP, BrazilDepartment of Mechanical Engineering, State University of Santa Catarina, Paulo Malschitzki, 89219710, Joinville, SC, Brazil; Corresponding author. Department of Mechanical Engineering, State University of Santa Catarina, Paulo Malschitzki, 89219710, Joinville, SC, Brazil.Munir Rachid Corrosion Laboratory, Department of Materials Engineering, Federal University of São Carlos, Rodovia Washington Luis Km 235, 13565-905, São Carlos, SP, Brazil; Federal University of São Carlos, Graduate Program in Materials Science and Engineering, Brazil; Corresponding author. Munir Rachid Corrosion Laboratory, Department of Materials Engineering, Federal University of São Carlos, Rodovia Washington Luis Km 235, 13565-905, São Carlos, SP, Brazil.Controlling the microstructure of the Ti–35Nb–7Zr–5Ta alloy is fundamental for enhancing its strength and corrosion resistance in biomedical applications. This study examines how microstructural evolution through equal-channel angular pressing (ECAP) at room temperature and 300 °C influences Young's modulus, hardness, and corrosion resistance. ECAP refines grain size and promotes nanocrystalline β-phase grains, α'' phase decomposition, and ω phase precipitation. Room temperature ECAP decreases Young's modulus by reducing the β-phase stability due to deformation, while 300 °C processing enhances hardness and Young's modulus due to finer microstructure and higher ω-phase fraction. Grain refinement accelerates passivation kinetics, enhancing corrosion resistance with a thicker and less defective passive film, especially at 300 °C, without significant changes in the elemental composition of the outer passive film.http://www.sciencedirect.com/science/article/pii/S2238785425001371β-titanium alloyECAPMicrostructureYoung's modulusPolarizationEIS |
| spellingShingle | R. Silva J. Silva C.C. Viana C.R.M. Afonso P. Hammer D.C.C. Magalhães A.H. Plaine C.A.D. Rovere Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing Journal of Materials Research and Technology β-titanium alloy ECAP Microstructure Young's modulus Polarization EIS |
| title | Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing |
| title_full | Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing |
| title_fullStr | Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing |
| title_full_unstemmed | Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing |
| title_short | Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing |
| title_sort | optimizing strength and corrosion resistance of the metastable β alloy ti 35nb 7zr 5ta alloy by equal channel angular pressing |
| topic | β-titanium alloy ECAP Microstructure Young's modulus Polarization EIS |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001371 |
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