Corrosion behavior of Mg65Cu25−x Zn x Gd10 (x=0, 5) metallic glass

Abstract

The effect of substitutional element Zn on corrosion behavior of Mg 65 Cu 25 Gd 10 glass was investigated. The amorphous structure of Mg 65 Cu 25 -x Zn x Gd 10 (x=0, 5) alloys were examined by X-ray diffractometry and differential scanning calorimetry (DSC). The dissolution rates of Mg 65 Cu 25 -x Zn x Gd 10 (x=0, 5) metallic glasses in a 5 wt% NaCl solution with pH value of 7 were determined by a hydrogen evolution testing method. The corrosion behavior of these alloys was characterized using dipping tests with 5 wt% NaCl, in combination with electrochemical measurements and scanning electron microscopy (SEM). Results show that the anti-corrosion ability of Mg 65 Cu 25 Gd 10 alloy is significantly improved due to the addition of Zn. Possible mechanism responsible for the improvement is discussed.

Electrical, optical and microstructural properties of transparent conducting GZO thin films deposited by magnetron sputtering

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