Fabrication and Corrosion Property of Novel Ti-Based Bulk Glassy Alloys without Ni
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- Qin Fengxiang
- Institute for Materials Research, Tohoku University
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- Wang Xinmin
- Institute for Materials Research, Tohoku University
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- Zhu Shengli
- Institute for Materials Research, Tohoku University
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- Kawashima Asahi
- Institute for Materials Research, Tohoku University
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- Asami Katsuhiko
- Institute for Materials Research, Tohoku University
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- Inoue Akihisa
- Institute for Materials Research, Tohoku University
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抄録
New Ni-free bulk glassy alloys in the Ti47.5Zr2.5+xCu37.5−xPd7.5Sn5 (x=0,5,7.5) system were fabricated by copper mold casting with diameters from 1 to 3 mm, which are expected to be applied as biomaterials. The structure, thermal stability and corrosion resistance were investigated by X-ray diffraction, differential scanning calorimetry and electrochemical measurement, respectively. Surface information after immersion in Hanks’ solution was also characterized by using XPS. The results indicate that the bulk glassy alloys examined are spontaneously passivated. By anodic polarization, they show the passive current densities between 10−2 and 10−3 A/m2. The higher corrosion resistance for the Ti-based bulk glassy alloys is attributed to the formation of stable and protective passive films enriched with titanium and zirconium.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 48 (3), 515-518, 2007
公益社団法人 日本金属学会
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詳細情報
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- CRID
- 1390282679228062592
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- NII論文ID
- 130004453496
- 10018735019
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BD2sXksVOjtLg%3D
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 8671146
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可