Microstructure and corrosion resistance of Ti-Zr-Cu-Pd-Sn glassy and nanocrystalline alloys

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

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The microstructure and corrosion behavior of the Ti47.5Zr 15Cu30Pd7.5Sn5 as-spun ribbons and as-cast rod have been investigated using HREM and potentiodynamic polarization study in simulated body fluids. The results of HREM reveal that, with decreasing cooling rate, the size and volume of nano-particles dispersed in glassy matrix increase for the Ti47.5Zr15Cu30Pd 7.5Sn5 as-prepared samples. The as-spun ribbons with small size nano-particle show high corrosion resistance in PBS(-) and Hanks' solution, may be due to the formation of CuZr phase, resulting in the enrichment of Ti and Pd in the glassy matrix, which is helpful to form protective passive film. Comparatively, poor corrosion resistance is observed for the as-cast rod sample with larger nano-particles in both solutions.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalMaterials Transactions
Volume48
Issue number2
DOIs
Publication statusPublished - 2007 Feb
Externally publishedYes

Keywords

  • Corrosion resistance
  • Microstructure
  • Nano-crystalline alloy
  • Titanium-based glassy alloy

ASJC Scopus subject areas

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

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