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Ni- and Cu-free Ti-based metallic glasses with potential biomedical application
Affiliation:1. SIMAP-CNRS, Institut Polytechnique de Grenoble, BP 75, St Martin d’Hères, 38402, France;2. WPI-AIMR, Tohoku University, Aoba-Ku, Sendai, Japan;3. LEPMI, Institut Polytechnique de Grenoble, St Martin d’Hères, 38402, France;4. Department of Materials Engineering, Federal University of São Carlos, SP, Brazil;1. SIMaP, CNRS UMR 5266, Grenoble University – Institut Polytechnique, BP. 75, St-Martin d''Heres 38402, France;2. DEMa, Universidade Federal de Sao Carlos – UFSCar, SP, Sao Carlos 13565-905, Brazil;3. WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;1. Department of Materials Science and Engineering, University of Ioannina, Ioannina 45110, Greece;2. SIMAP-CNRS, Institut Polytechnique de Grenoble, BP 75, St. Martin d’Heres 38402, France;3. Department of Physics, University of Ioannina, Ioannina 45110, Greece;1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China;2. Welding and Plastic Forming Division, Beijing Institute of Aeronautical Materials, Beijing 100095, China;1. School of Material Science and Engineering, Research Institute for Energy Equipment Materials, Hebei University of Technology, Tianjin 300130, China;2. Tianjin Key Laboratory of Laminating Fabrication and Interface Control Technology for Advanced Materials, Hebei University of Technology, Tianjin 300130, China;3. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, China
Abstract:In the present work Ti–Fe–Si and Ti–Fe–Si–X (X = Zr, Pd, Ge) glassy alloys are discussed as potential biomedical materials. Depending on composition and experimental conditions these alloys possess glassy, quasicrystalline or crystalline structure. The glassy state and crystallization behavior of the melt spun ribbons were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), differential scanning calorimetry (DSC) and the Hank's solution was used as simulated body fluid for corrosion tests. Ternary Ti–Fe–Si alloys near the Ti65Fe30Si5 eutectic point were prone to form quasicrystals if the cooling rate was not high enough to retain amorphous structure. The compositions on the steeper side of the eutectic point could be vitrified. The results indicate that small additions of Zr can have a positive effect on glass formation, while additions of Ge, Pd may have a detrimental effect by promoting crystallization. Ti–Fe–Si and Ti–Fe–Si–Zr alloys exhibited high corrosion properties, superior to that of pure Ti and most of Ti-based glassy alloys reported in the literature. Being free of Ni and Cu this group of alloys may be considered for possible biomedical application.
Keywords:A  Metallic glasses  B  Glass forming ability  B  Corrosion  D  Microstructure  G  Biomedical
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