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Volume 12
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10.3390/met12050719
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Article

Surface Microstructure and Performance of Anodized TZ30 Alloy in SBF Solution

by
Kaiyang Liu
1,
Yixin Zhou
1,
Lixia Yin
1,
Yindong Shi
1,2,
Guangwei Huang
1,3,
Xiaoyan Liu
1,2,3,
Liyun Zheng
1,2,3,
Zhenguo Xing
1,2,
Xiliang Zhang
1,2 and
Shunxing Liang
1,2,3,*
1
College of Materials Science and Engineering, Hebei University of Engineering, Handan 056038, China
2
Hebei Key Laboratory of Wear-Resistant Metallic Materials with High Strength and Toughness, Hebei University of Engineering, Handan 056038, China
3
Hebei Engineering Research Centre for Rare Earth Permanent Magnetic Materials & Applications, Hebei University of Engineering, Handan 056038, China
*
Author to whom correspondence should be addressed.
Metals 2022, 12(5), 719; https://doi.org/10.3390/met12050719
Submission received: 16 March 2022 / Revised: 21 April 2022 / Accepted: 21 April 2022 / Published: 23 April 2022
(This article belongs to the Special Issue Correlation between Composition, Microstructure and Properties of Advanced Titanium Alloys)
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Abstract

Anodization is performed on the Ti-30Zr-5Al-3V (TZ30) alloy to improve its surface performance. X-ray diffractometer (XRD), scanning electron microscopy (SEM), and Olympus microscope are used to determine the phase constitution, morphology, and thickness of the anodization film (AOF). Tribological tests and electrochemical corrosion experiments are carried out to measure, respectively, the wear behavior and corrosion resistance of AOFs in simulated body fluid (SBF) solution. The microstructure characteristic of the AOF anodized at low voltage (20 V) is composed of compact and loose regions. As the applied voltage increases to 60 V, the compact regions transform progressively into loose regions, and then grow into nanotube regions. Besides, an increase in thickness of the AOF from 8.6 ± 4.61 μm to 20.7 ± 2.18 μm, and a gradual increase in surface microhardness from 364.6 ± 14.4 HV to 818.4 ± 19.3 HV, are also exhibited as the applied voltage increases from 20 V to 60 V. Specimens anodized at 40 V and 60 V have a low friction coefficient (~0.15) and wear rate (~2.2 mg/N/m) in the SBF solution. The enhanced wearability originates from the high hardness and various wear mechanisms. Potentiodynamic polarization curves suggest that the corrosion resistance in the SBF solution of all anodized specimens is greatly improved, thanks to the protection from the anodized TiO2 film.
Keywords: Ti alloys; anodization; microstructure; surface performance Ti alloys; anodization; microstructure; surface performance

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MDPI and ACS Style

Liu, K.; Zhou, Y.; Yin, L.; Shi, Y.; Huang, G.; Liu, X.; Zheng, L.; Xing, Z.; Zhang, X.; Liang, S. Surface Microstructure and Performance of Anodized TZ30 Alloy in SBF Solution. Metals 2022, 12, 719. https://doi.org/10.3390/met12050719

AMA Style

Liu K, Zhou Y, Yin L, Shi Y, Huang G, Liu X, Zheng L, Xing Z, Zhang X, Liang S. Surface Microstructure and Performance of Anodized TZ30 Alloy in SBF Solution. Metals. 2022; 12(5):719. https://doi.org/10.3390/met12050719

Chicago/Turabian Style

Liu, Kaiyang, Yixin Zhou, Lixia Yin, Yindong Shi, Guangwei Huang, Xiaoyan Liu, Liyun Zheng, Zhenguo Xing, Xiliang Zhang, and Shunxing Liang. 2022. "Surface Microstructure and Performance of Anodized TZ30 Alloy in SBF Solution" Metals 12, no. 5: 719. https://doi.org/10.3390/met12050719

APA Style

Liu, K., Zhou, Y., Yin, L., Shi, Y., Huang, G., Liu, X., Zheng, L., Xing, Z., Zhang, X., & Liang, S. (2022). Surface Microstructure and Performance of Anodized TZ30 Alloy in SBF Solution. Metals, 12(5), 719. https://doi.org/10.3390/met12050719

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