Journal of Materials Engineering and Performance

, Volume 28, Issue 11, pp 6874–6884 | Cite as

Electrochemical Behavior of Cu60Zr25Ti15 Bulk Metallic Glass with the Addition of Nb and Mo

  • Soumen Mandal
  • B. Sivakumar
  • Y. N. Singhbabu
  • N. R. Bandyopadhyay
  • P. P. Chattopadhyay
  • Ansu J. KailathEmail author


This paper reports the changes in the electrochemical behavior of Cu60Zr25Ti15 bulk metallic glass (BMG) with the addition of 1 at.% Mo and Nb in 3.5 wt.% NaCl aqueous solution. Electrochemical methods employed for the study are open-circuit potential (OCP) and potentiodynamic polarization. The OCP values of the parent BMG and minor-alloyed BMGs differ only marginally. However, potentiodynamic studies show slightly higher corrosion resistance for the minor-alloyed BMGs than that of the parent alloy. Polarized surfaces of all the samples, examined under a scanning electron microscope (SEM), reveal pits formed due to corrosion. Corrosion products are analyzed by energy-dispersive spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). Higher corrosion resistance observed for Nb- or Mo-added BMGs is attributed to the formation of NbO2/Nb2O5 and MoO2, respectively, besides the oxides of other constituent elements.


binding energy bulk metallic glass (BMG) pitting corrosion polarization 



CSIR-NML for funding the inner house project (OLP-203) is greatly acknowledged. The help received from Ms. Moumita and Ms. Siuli (CSIR-NML) in capturing TEM and SEM micrographs is acknowledged. Dr. Soumen Mandal acknowledges the research fellowship received from MHRD, India.


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Copyright information

© ASM International 2019

Authors and Affiliations

  • Soumen Mandal
    • 1
    • 2
  • B. Sivakumar
    • 1
  • Y. N. Singhbabu
    • 1
  • N. R. Bandyopadhyay
    • 2
  • P. P. Chattopadhyay
    • 2
  • Ansu J. Kailath
    • 1
    Email author
  1. 1.CSIR-National Metallurgical LaboratoryJamshedpurIndia
  2. 2.Indian Institute of Engineering Science and TechnologyShibpur, HowrahIndia

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