Microstructural, mechanical and biological characterizations of the promising titanium-tantalum alloy for biomedical applications

Chi Ming Wu, Pei Wen Peng, Hsin Hua Chou, Keng Liang Ou, Erwan Sugiatno, Chung Ming Liu, Chiung Fang Huang

研究成果: 雜誌貢獻文章同行評審

12 引文 斯高帕斯(Scopus)

摘要

In this study, the microstructural, mechanical and biological characterizations of the Ti-25Ta (wt.%) alloy were investigated by means of optical microscope, X-ray diffraction, electron microscope, microhardness test, contact angle goniometer and in vitro cytotoxicity assay. As the alloy underwent heat-treatment at temperatures between 700 °C and 1000 °C for 30 min, its microstructure was a mixture of β phase and needle-like α′′ martensite phase. The analytical results indicated that the volume fraction of the needle-like α′′ martensite phase decreased with increasing heat-treatment temperature. The β transus temperature of the investigated Ti-25Ta alloy was below 700 °C. Moreover, the alloy heat-treated at 900 °C exhibited the maximum hardness Hv 743 ± 12.93. For wettability evaluation, all investigated samples possessed surface hydrophilicity. The cytotoxicity assay results also demonstrated that the heat-treated Ti-25Ta samples have well cell proliferation and adhesion behaviors. Therefore, these results and features could be used to further understand the relationship between the high temperature microstructure, mechanical behavior and in vivo biocompatibility of the Ti-25Ta alloy, and develop as a potential biomedical alloy.
原文英語
頁(從 - 到)2604-2610
頁數7
期刊Journal of Alloys and Compounds
735
DOIs
出版狀態已發佈 - 二月 25 2018

ASJC Scopus subject areas

  • 材料力學
  • 機械工業
  • 金屬和合金
  • 材料化學

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