Experimental and theoretical study on the corrosion resistance of Zr–Co–Al–Nb metallic glasses
الموضوعات : Journal of Theoretical and Applied Physics
W. K. Le
1
(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology)
Z. Z. Yuan
2
(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology)
X. Y. Zhang
3
(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology)
الکلمات المفتاحية: Metallic glasses, corrosion, DOS, First, principles calculation,
ملخص المقالة :
AbstractThe corrosion resistance of (Zr56Al16Co28)100−XNbX(X = 0, 2, 4) metallic glasses in Hanks’ solution were investigated by electrochemical polarization measurements. Polarization curves demonstrate that the addition of niobium into Zr–Co–Al amorphous alloys improves the corrosion resistance. Composition and chemical status of the elements in the passive film were characterized by XPS, and first-principles calculations based on density functional theory (DFT) were used to analyse the mechanism theoretically.
