Journal of Northeastern University(Natural Science)

Journal of Northeastern University ›› 2007, Vol. 28 ›› Issue (12): 1754-1757.DOI: -

• OriginalPaper • Previous Articles     Next Articles

Effect of Ni3Si coating on resistance to NaCl/O2/H2O synergic corrosion behavior of Ti6Al4V alloy

Yu, Cun-Zhen (1); Wei, De-Zhou (1); Zhu, Sheng-Long (2)   

  1. (1) School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China; (2) State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Acad. of Sci., Shenyang 110016, China
  • Received:2013-06-24 Revised:2013-06-24 Online:2007-12-15 Published:2013-06-24
  • Contact: Yu, C.-Z.
  • About author:-
  • Supported by:
    -

RichHTML

0

PDF (PC)

550

Abstract: The effect of Ni3Si coating deposited by magnetron sputtering on the synergic anticorrosion behavior of the alloy Ti6Al4V was investigated at 600°C. The results showed that Ni3Si coating possesses excellent resistance to the synergic corrosion due to water vapor, O2 and NaCl because of the SiOx formation on the coating surface in corrosion process, while the alloy suffers from catastrophic corrosion, including not only the inner oxidation but also lots of corrosive products flaking off without the coating. The anticorrosion behavior of the alloy and coating were studied using scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS), X-ray diffraction (XRD), electron probe microanalysis (EPMA) and X-ray photoelectron spectroscopy (XPS), with the anticorrosion mechanisms of the coatings discussed.

CLC Number: