Effect of Niobium Film on Corrosion Resistance of AZ91D Magnesium Alloy

Er Bao Liu; Xiu Fang Cui; Guo Jin; Qing Fen Li; Tian Min Shao

doi:10.4028/www.scientific.net/KEM.525-526.9

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Effect of Niobium Film on Corrosion Resistance of AZ91D Magnesium Alloy
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 525-526Effect of Niobium Film on Corrosion Resistance of...

Effect of Niobium Film on Corrosion Resistance of AZ91D Magnesium Alloy

Abstract:

The niobium film is prepared by magnetron sputtering on the surface of the AZ91D magnesium alloy. The morphology, phase structure, roughness, nanohardness and elastic modulus of the niobium films were studied by filed emission scanning electron microscope, X-ray diffraction, atomic force microscope and nanoindentation respectively. The influences of film deposition parameters, such as substrate temperature, negative bias and power on the properties of films were investigated. The corrosion resistance of niobium films on magnesium alloy was investigated by electrochemical system. Results show that the microstructure, phase structure, roughness, nanohardness and elastic modulus of the niobium films are determined by power, negative bias and substrate temperature. And the corrosion resistance of magnesium alloy improved obviously when coated with the niobium films.

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Periodical:

Key Engineering Materials (Volumes 525-526)

Pages:

9-12

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.525-526.9

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Online since:

November 2012

Authors:

Er Bao Liu, Xiu Fang Cui, Guo Jin, Qing Fen Li, Tian Min Shao

Keywords:

AZ91D Magnesium Alloy, Corrosion Resistance, Niobium Film

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