Corrosion behaviour of porous Ni-free Ti-based bulk metallic glass produced by spark plasma sintering in Hanks' solution |
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| Affiliation: | 1. Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan;2. 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, 72 Wenhua Road, Shenyang 110016, China;2. Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, China;1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;1. Dipartimento di Chimica and NIS, Università di Torino, V. Giuria 7, 10125 Torino, Italy;2. INRIM, Strada delle Cacce 91, 10135 Torino, Italy;1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;1. School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;2. National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing 100081, China;3. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China |
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| Abstract: | Porous bulk metallic glasses (BMGs) are promising biomedical materials to be used for surgical implants. Here we report on successful formation of porous Ni-free Ti-based BMGs with a diameter exceeding 15 mm by spark plasma sintering the mixture of the gas-atomized Ti-based (Ti45Zr10Cu31Pd10Sn4) glassy alloy powder and solid salt powder, followed by leaching treatment into water to eliminate the salt phase. Corrosion behaviour of the produced porous Ti-based BMGs was investigated in Hanks' solution. The potentiodynamic polarization curves showed that the anodic current density in the porous Ti-based BMGs slowly increased during anodic polarization, suggesting the crevice corrosion. |
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| Keywords: | B. Glasses, metallic C. Powder metallurgy, including consolidation C. Rapid solidification processing F. Corrosion behaviour F. Electron microscopy, scanning |
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