Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications
Ti–Nb alloys have the advantages of non-toxicity, low elastic modulus, high strength, and good biocompatibility. However, the effect of Nb content on its passivation behavior in Hank's solution still needs to be investigated. This work investigated the microstructure, hardness, and corrosion be...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-11-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423029769 |
| _version_ | 1797301480782299136 |
|---|---|
| author | Hao Liu Ze-Xin Wang Jun Cheng Nan Li Shun-Xing Liang Lina Zhang Fanmin Shang Dobuvyy Oleksandr Liang-Yu Chen |
| author_facet | Hao Liu Ze-Xin Wang Jun Cheng Nan Li Shun-Xing Liang Lina Zhang Fanmin Shang Dobuvyy Oleksandr Liang-Yu Chen |
| author_sort | Hao Liu |
| collection | DOAJ |
| description | Ti–Nb alloys have the advantages of non-toxicity, low elastic modulus, high strength, and good biocompatibility. However, the effect of Nb content on its passivation behavior in Hank's solution still needs to be investigated. This work investigated the microstructure, hardness, and corrosion behavior of Ti-xNb (x = 5, 15, 25 wt%) alloys. The β phase gradually increases associated with the increasing Nb content in Ti–Nb alloys, resulting in the dispersion strengthening of alloys. Moreover, with the increased Nb content, the samples show higher open circuit potential, lower passivation current density, and higher charge transfer resistance in Hank's solution at 37 °C. When the passive films of Ti–Nb alloys are formed under the high potentials of 1 V and 2 V, the passive films gradually dissolve after the withdrawal of applied potential, representing the decrease in the total impedance of the passive film. The reason for this phenomenon is the addition of Nb substantially decreases the oxygen vacancies in the passive film formed on the samples. Therefore, the impedance of the passive film is increased. |
| first_indexed | 2024-03-07T23:22:12Z |
| format | Article |
| id | doaj.art-c1bfdcd490904b9e9c63c72b4ffb3bdc |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:22:12Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c1bfdcd490904b9e9c63c72b4ffb3bdc2024-02-21T05:28:24ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012778827894Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applicationsHao Liu0Ze-Xin Wang1Jun Cheng2Nan Li3Shun-Xing Liang4Lina Zhang5Fanmin Shang6Dobuvyy Oleksandr7Liang-Yu Chen8School of Materials Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Materials Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China; Corresponding author.Northwest Institute for Nonferrous Metal Research, Shaanxi Key Laboratory of Biomedical Metal Materials, Xi'an 710016, China; Corresponding author.School of Materials Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, ChinaSchool of Materials Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaSchool of Materials Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaDepartment of Material Science and Technology of Metals, Admiral Makarov National University of Shipbuilding Institute, 54025 Nikolaev, UkraineSchool of Materials Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China; Corresponding author.Ti–Nb alloys have the advantages of non-toxicity, low elastic modulus, high strength, and good biocompatibility. However, the effect of Nb content on its passivation behavior in Hank's solution still needs to be investigated. This work investigated the microstructure, hardness, and corrosion behavior of Ti-xNb (x = 5, 15, 25 wt%) alloys. The β phase gradually increases associated with the increasing Nb content in Ti–Nb alloys, resulting in the dispersion strengthening of alloys. Moreover, with the increased Nb content, the samples show higher open circuit potential, lower passivation current density, and higher charge transfer resistance in Hank's solution at 37 °C. When the passive films of Ti–Nb alloys are formed under the high potentials of 1 V and 2 V, the passive films gradually dissolve after the withdrawal of applied potential, representing the decrease in the total impedance of the passive film. The reason for this phenomenon is the addition of Nb substantially decreases the oxygen vacancies in the passive film formed on the samples. Therefore, the impedance of the passive film is increased.http://www.sciencedirect.com/science/article/pii/S2238785423029769Ti-Nb alloyMicrostructureHardnessPassivation behaviorPassive film |
| spellingShingle | Hao Liu Ze-Xin Wang Jun Cheng Nan Li Shun-Xing Liang Lina Zhang Fanmin Shang Dobuvyy Oleksandr Liang-Yu Chen Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications Journal of Materials Research and Technology Ti-Nb alloy Microstructure Hardness Passivation behavior Passive film |
| title | Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications |
| title_full | Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications |
| title_fullStr | Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications |
| title_full_unstemmed | Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications |
| title_short | Nb-content-dependent passivation behavior of Ti–Nb alloys for biomedical applications |
| title_sort | nb content dependent passivation behavior of ti nb alloys for biomedical applications |
| topic | Ti-Nb alloy Microstructure Hardness Passivation behavior Passive film |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423029769 |
| work_keys_str_mv | AT haoliu nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT zexinwang nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT juncheng nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT nanli nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT shunxingliang nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT linazhang nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT fanminshang nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT dobuvyyoleksandr nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications AT liangyuchen nbcontentdependentpassivationbehavioroftinballoysforbiomedicalapplications |