Stress corrosion cracking and bioactivity of Ti-based bulk metallic glass

Fengxiang Qin, Shengli Zhu, Zhenhua Dan, Asahi Kawashima, Guoqiang Xie

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In this study, the stress corrosion cracking behavior and bioactivity of Ti-Zr-Cu-Pd-Sn bulk metallic glass (BMG) were investigated. The results revealed that the Ti-based BMG exhibited similar tensile behavior in Hanks' solution with a slightly lower strength than that in air. A bioactive surface layer composed of calcium phosphate compound was obtained after a two-step treatment on the Ti-based BMGs. Hydrothermal-electrochemical treatment was effective to form a porous surface layer by increasing the Ti content and decreasing the Cu content in the surface. Consequently, pre-calcium treatment accelerated the nucleation of calcium phosphate particles. After hydrothermal-electrochemical and pre-calcium treatments, following by soaking in Hanks' solution, homogeneous calcium phosphate layer formed on the Ti-based metallic glass.

Original languageEnglish
Pages (from-to)S123-S127
JournalJournal of Alloys and Compounds
Volume615
Issue numberS1
DOIs
Publication statusPublished - 2014 Dec 5
Externally publishedYes

Keywords

  • Corrosion
  • Metallic glasses
  • Microstructure
  • Scanning electron microscopy (SEM)

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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