Optimization of mechanical property, antibacterial property and corrosion resistance of Ti-Cu alloy for dental implant
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第10期
论文作者：Jiewen Wang Shuyuan Zhang Ziqing Sun Hai Wang Ling Ren Ke Yang
文章页码：2336 - 2344
摘 要：Ti-Cu alloys with different Cu contents（3, 5 and 7 wt%） were fabricated and studied as novel antibacterial biomaterials for dental application. The Ti-Cu alloys were annealing treated at different temperatures（740℃, 830℃ and 910℃） in order to obtain three typical microstructures, β-Ti + Ti2Cu, β-Ti + transformed α-Ti, and transformed α-Ti. Mechanical, antibacterial and biocorrosion properties of Ti-Cu alloys with different microstructures were well analyzed by scanning electron microscopy（SEM）,X-ray diffraction（XRD）, transmission electron microscopy（TEM）, tensile test, electrochemical test and antibacterial test. The results indicated that the Ti-Cu alloys with microstructure of β-Ti + Ti2 Cu showed the best ductility compared with other Ti-Cu alloys with microstructures of β-Ti + transformed α-Ti and complete transformed α-Ti, and meanwhile, increase of the Cu content significantly contributed to the decreased ductility due to the increasing amount of Ti2 Cu, which brought both solid solution strengthening and precipitation strengthening. Finally, the Ti-5 Cu alloy with microstructure of β-Ti + Ti2 Cu exhibited excellent ductility, antibacterial property and corrosion resistance, providing a great potential in clinical application for dental implants.
Jiewen Wang1,2，Shuyuan Zhang2，Ziqing Sun2，Hai Wang2，Ling Ren2，Ke Yang2
1. School of Materials Science and Engineering, University of Science and Technology of China2. Institute of Metal Research, Chinese Academy of Sciences
摘 要：Ti-Cu alloys with different Cu contents（3, 5 and 7 wt%） were fabricated and studied as novel antibacterial biomaterials for dental application. The Ti-Cu alloys were annealing treated at different temperatures（740℃, 830℃ and 910℃） in order to obtain three typical microstructures, β-Ti + Ti2Cu, β-Ti + transformed α-Ti, and transformed α-Ti. Mechanical, antibacterial and biocorrosion properties of Ti-Cu alloys with different microstructures were well analyzed by scanning electron microscopy（SEM）,X-ray diffraction（XRD）, transmission electron microscopy（TEM）, tensile test, electrochemical test and antibacterial test. The results indicated that the Ti-Cu alloys with microstructure of β-Ti + Ti2 Cu showed the best ductility compared with other Ti-Cu alloys with microstructures of β-Ti + transformed α-Ti and complete transformed α-Ti, and meanwhile, increase of the Cu content significantly contributed to the decreased ductility due to the increasing amount of Ti2 Cu, which brought both solid solution strengthening and precipitation strengthening. Finally, the Ti-5 Cu alloy with microstructure of β-Ti + Ti2 Cu exhibited excellent ductility, antibacterial property and corrosion resistance, providing a great potential in clinical application for dental implants.
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