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DEPENDENCE OF CORROSION BEHAVIOR OFNi–MoS2/Al2O3COATINGS IN RELATION TO THEAl2O3RATIO INMoS2/Al2O3PARTICLES

Author

Listed:
  • ZHONG-JIA HUANG

    (Department of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu 210094, P. R. China)

  • DANG-SHENG XIONG

    (Department of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu 210094, P. R. China)

Abstract

TheMoS2particles were coated withAl2O3ratio varying from 5 to 50 wt.% content.Ni–MoS2/Al2O3composite coatings were prepared by means of pulse electrodeposition. The dependence of preferential orientation index and corrosion properties of these composite coatings was investigated in relation to theAl2O3ratio inMoS2/Al2O3particles. Polarization measurements have been used to evaluate corrosion resistance performance of coating. TheNi–MoS2/50wt.%Al2O3coatings showed the highest corrosion resistance compared withNi–MoS2/5wt.%Al2O3,Ni–MoS2/10wt.%Al2O3, andNi–MoS2/30wt.%Al2O3coatings. Thus, it is understood that the increase of ratio ofAl2O3inMoS2/Al2O3composite particle improves the corrosion efficiency of coating. TheseAl2O3act as inert physical barriers to the initiation and development of corrosion defect, hence improve the corrosion resistance of the coating.

Suggested Citation

  • Zhong-Jia Huang & Dang-Sheng Xiong, 2009. "DEPENDENCE OF CORROSION BEHAVIOR OFNi–MoS2/Al2O3COATINGS IN RELATION TO THEAl2O3RATIO INMoS2/Al2O3PARTICLES," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 16(03), pages 455-462.
    • Handle: RePEc:wsi:srlxxx:v:16:y:2009:i:03:n:s0218625x09012858
    DOI: 10.1142/S0218625X09012858
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