Study on Properties of Zn-Al-Mg-RE Coatings by Arc Spraying

Fei Lu; Zhao Qian Xie; Yu Feng Lu; Miao Lou; Meng Zhou; Xin Dong Hu

doi:10.4028/www.scientific.net/AMR.804.79

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 804Study on Properties of Zn-Al-Mg-RE Coatings by Arc...

Study on Properties of Zn-Al-Mg-RE Coatings by Arc Spraying

Abstract:

In order to improve the organization, reduce the porosity, compact the structure and enhance the corrosion resistance of the coating, Zn-Al-Mg-RE coating system was prepared by high velocity arc spraying. The surface appears, phase composition and electrochemical properties of the coating were characterized by scanning electron microscope, X-ray radiation diffaction and electrochemical workstation. The results indicated that the coatings were compact. The coatings were mainly zinc and aluminum phase. In corrosion of immersion, the reaction resistance and coating resistance of coatings quickly become bigger, the surface of coatings become more compact, and the corrosion reaction is more difficult. Electrochemical tests showed that the coating had excellent corrosion resistance. The electrochemical protection and self-sealing effect of coatings can have long-term effects on anticorrosion.

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Periodical:

Advanced Materials Research (Volume 804)

Pages:

79-84

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.804.79

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Online since:

September 2013

Authors:

Fei Lu, Zhao Qian Xie, Yu Feng Lu, Miao Lou, Meng Zhou, Xin Dong Hu

Keywords:

Arc Spraying, Corrosion Resistance, Zn-Al-Mg-Re Coating

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