Fabrication and corrosion property of novel Ti-based bulk glassy alloys without Ni

Fengxiang Qin, Xinmin Wang, Shengli Zhu, Asahi Kawashima, Katsuhiko Asami, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)


New Ni-free bulk glassy alloys in the Ti47.5Zr 2.5+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.

Original languageEnglish
Pages (from-to)515-518
Number of pages4
JournalMaterials Transactions
Issue number3
Publication statusPublished - 2007 Mar


  • Corrosion resistance
  • Nickel-free
  • Titanium-based bulk glassy alloys

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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