Corrosion behavior of MgZnCa bulk amorphous alloys fabricated by spark plasma sintering

Feng Xiang Qin, Chuan Ji, Zhen Hua Dan, Guo Qiang Xie, Hao Wang, Shin Ichi Yamaura, Mitsuo Niinomi, Yang De Li

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Centimeter-sized Mg65Zn30Ca5 bulk amorphous alloys were fabricated by the spark plasma sintering process from the amorphous powders with a size smaller than 5 μ m prepared by ball-milling. The sintered Mg65Zn30Ca5 samples were in an amorphous state when the spark plasma sintering was performed at a temperature of 383 K under a pressure of 600 MPa. The data of polarization curves presented that the sintered Mg65Zn30Ca5 bulk amorphous alloys exhibited higher corrosion resistance than pure Mg and AZ31B alloy owing to high content of Zn and homogeneous structure. A calcium phosphate compound layer was formed on the sintered Mg65Zn30Ca5 bulk amorphous sample after immersion in Hanks' solution, which is effective in improving corrosion resistance and bioactivity. The sintered MgZnCa bulk amorphous alloys with large dimensions broaden the potential application of bulk amorphous alloys in the biomedical fields.

Original languageEnglish
Pages (from-to)793-799
Number of pages7
JournalActa Metallurgica Sinica (English Letters)
Volume29
Issue number9
DOIs
Publication statusPublished - 2016 Sep

Keywords

  • Biomedical applications
  • Bulk amorphous alloys
  • Corrosion behavior
  • Mg
  • Spark plasma sintering

ASJC Scopus subject areas

  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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