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Article

Biocompatibility and Biological Corrosion Resistance of Ti–39Nb–6Zr+0.45Al Implant Alloy

1
Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea
2
Department of Materials Engineering, Hanyang University, Ansan 15588, Korea
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Korea Institute of Industrial Technology (KITECH), Incheon 21999, Korea
4
Department of Pharmarcy, Sunchon National University, Suncheon 57922, Korea
5
Department of Biology, Sunchon National University, Suncheon 57922, Korea
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Department of Materials Science and Metallurgical Engineering, Sunchon National University, Suncheon 57922, Korea
*
Author to whom correspondence should be addressed.
J. Funct. Biomater. 2021, 12(1), 2; https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010002
Received: 27 November 2020 / Revised: 16 December 2020 / Accepted: 18 December 2020 / Published: 29 December 2020
Titanium and titanium alloys are promising implant metallic materials because of their high strengths, low elastic moduli, high corrosion resistances, and excellent biocompatibilities. A large difference in elastic modulus between the implant material and bone leads to a stress shielding effect, which increases the probability of implant separation or decrease in the bone density around it. Thus, a lower elastic modulus is required for a better implant metallic material. β titanium has a lower elastic modulus and high strength and can reduce the probability of the stress shielding effect. In this study, the applicability of the Ti–39Nb–6Zr+0.45Al alloy, obtained by adding a small amount of aluminum to the Ti–39Nb–6Zr alloy, as a biomedical implant material was evaluated. The mechanical properties and biocompatibility of the alloy were evaluated. The biocompatibility of Ti–39Nb–6Zr+0.45Al was similar to that of Ti–39Nb–6Zr according to in vitro and in vivo experiments. In addition, the biological corrosion resistances were evaluated through a corrosion test using a 0.9% NaCl solution, which is equivalent to physiological saline. The corrosion resistance was improved by the addition of Al. The yield strength of the Ti–39Nb–6Zr+0.45Al alloy was improved by approximately 20%. The excellent biocompatibility confirmed its feasibility for use as a biomedical implant material. View Full-Text
Keywords: Ti-39Nb-6Zr alloy; biocompatibility; biological corrosion resistance; mechanical property Ti-39Nb-6Zr alloy; biocompatibility; biological corrosion resistance; mechanical property
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MDPI and ACS Style

Hwang, Y.-J.; Choi, Y.-S.; Hwang, Y.-H.; Cho, H.-W.; Lee, D.-G. Biocompatibility and Biological Corrosion Resistance of Ti–39Nb–6Zr+0.45Al Implant Alloy. J. Funct. Biomater. 2021, 12, 2. https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010002

AMA Style

Hwang Y-J, Choi Y-S, Hwang Y-H, Cho H-W, Lee D-G. Biocompatibility and Biological Corrosion Resistance of Ti–39Nb–6Zr+0.45Al Implant Alloy. Journal of Functional Biomaterials. 2021; 12(1):2. https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010002

Chicago/Turabian Style

Hwang, Yu-Jin, Young-Sin Choi, Yun-Ho Hwang, Hyun-Wook Cho, and Dong-Geun Lee. 2021. "Biocompatibility and Biological Corrosion Resistance of Ti–39Nb–6Zr+0.45Al Implant Alloy" Journal of Functional Biomaterials 12, no. 1: 2. https://0-doi-org.brum.beds.ac.uk/10.3390/jfb12010002

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