Mandal, Soumen and Sivakumar, B and Singhbabu, Y N and Bandyopadhyay, N R and Chattopadhyay, P P and Kailath, A J (2019) Electrochemical Behavior of Cu 60 Zr 25 Ti 15 Bulk Metallic Glass with the Addition of Nb and Mo. Journal of Materials Engineering and Performance, 28 (IF-1.476). pp. 6874-6884.
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This paper reports the changes in the electrochemical behavior of Cu 60 Zr 25 Ti 15 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 NbO 2 /Nb 2 O 5 and MoO 2 , respectively, besides the oxides of other constituent elements.
|Uncontrolled Keywords:||binding energy, bulk metallic glass (BMG), pitting corrosion, polarization|
|Divisions:||Material Science and Technology|
|Deposited By:||Dr. A K Sahu|
|Deposited On:||16 Jan 2020 11:53|
|Last Modified:||16 Jan 2020 12:20|
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