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Journal of Applied Sciences
  Year: 2013 | Volume: 13 | Issue: 9 | Page No.: 1479-1483
DOI: 10.3923/jas.2013.1479.1483
 
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Corrosion Resistance of Coating with Fe-based Metallic Glass Powders Fabricated by Laser Spraying
Wang Yingjie, Ouyang Gengsheng, Zhang Lei, Wu Xiaoping, Zhang Hengyu and Wang Shanlin

Abstract:
In order to improve their wearing resistance, some reinforced particles such as TiN and WC were usually inserted into Fe-based Metallic Glassy Coatings (Fe-MGC). In this study, a new Fe-MGC was fabricated with the powder mixtures of Fe-based metallic glass, NiCr alloy and WC particle by laser spraying. The corrosion resistance of Fe-MGC was investigated by potentiodynamic polarization tests in 1 M HCl, NaCl, H2SO4 and NaOH solutions, respectively. The microstructures were detected by X-ray diffraction and scanning electron microscope. The Fe-MGC of Fe68.5 C7.1 Si3.3 B5.5 P8.7 Cr2.3 Mo2.5 Al2.0+NiCr+tungsten carbon exhibits low corrosion current density of 10.6 and 3.3 μA, high corrosion potential of 326.4 and 367.5 mV in HCl and NaCl solutions, respectively. The results indicate Fe-MGC presents low porosity and high microhardness implying superior wearing properties, moreover, exhibits excellent corrosion resistance and no inferior than that of full amorphous coatings in various solutions. The excellent corrosion resistance and wearing properties demonstrates that Fe-based metallic glassy matrix powder is a viable engineering material as practical anti-corrosion and anti-wear coating applications.
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How to cite this article:

Wang Yingjie, Ouyang Gengsheng, Zhang Lei, Wu Xiaoping, Zhang Hengyu and Wang Shanlin, 2013. Corrosion Resistance of Coating with Fe-based Metallic Glass Powders Fabricated by Laser Spraying. Journal of Applied Sciences, 13: 1479-1483.

DOI: 10.3923/jas.2013.1479.1483

URL: https://scialert.net/abstract/?doi=jas.2013.1479.1483

 
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