Corrosion resistance of Zr-based bulk amorphous alloys containing Pd

F. X. Qin, H. F. Zhang, Y. F. Deng, B. Z. Ding, Z. Q. Hu

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

The structure, thermal stability and corrosion resistance of the bulk amorphous Zr55Al10Cu30Ni5-xPd x (x=0, 1, 3, 5at.%) alloys were studied by X-ray diffraction (XRD), high-resolution transmission electron microscope (HRTEM), differential scanning calorimetry (DSC) and electrochemical measurements, respectively. The Zr-based alloys containing 0 and 1% Pd both show an active-passive transition by anodic polarization in 0.6M NaCl solution, while the 3 and 5% Pd modified amorphous alloys show a single active state with pseudo passivation phenomenon. The results of XPS and HRTEM reveal that the microstructure seriously affects the corrosion behaviors of the bulk Zr-based alloys in 0.6M NaCl. The mixture state of amorphous and nanocrystal phases leads to the deterioration of the corrosion resistance.

Original languageEnglish
Pages (from-to)318-323
Number of pages6
JournalJournal of Alloys and Compounds
Volume375
Issue number1-2
DOIs
Publication statusPublished - 2004 Jul 28

Keywords

  • Amorphous materials
  • Casting
  • Thermal analysis
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

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

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