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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50189

    Title: A Study of Wear and Corrosion Resistance of Arc-Sprayed Ni-Ti Composite Coatings
    Authors: Chang,CH;Jeng,MC;Su,CY;Huang,TS
    Contributors: 機械工程學系
    Date: 2011
    Issue Date: 2012-03-27 17:05:54 (UTC+8)
    Publisher: 國立中央大學
    Abstract: In this study, the corrosion and wear performance of Ni-Ti composite coatings with distinct parameters were investigated. The coatings were prepared by arc spraying with Ti and Ni wires fed synchronously. Structural, surface morphological, and compositional analyses of the Ni-Ti composite coatings were performed using microhardness, SEM/EDS, XRD, and DTA analysis. Electrochemical AC impedance and potentiodynamic polarization tests were carried out to examine the anticorrosion performance of the coating. Ball-on-disc dry wear tests based on the ASTM G99 standard were performed at room temperature to evaluate the antiwear properties. The DTA and XRD analysis results indicated that some intermetallic compounds such as TiNi(3) and Ni-Ti alloy were present within the Ni-Ti coating. The wear resistance of the Ni-Ti composite coating is superior to that of the Ni-sprayed coating but slightly inferior to that of the Ti-sprayed coating. The corrosion resistance of the arc-sprayed Ni-Ti coating is superior to that of Ti but inferior to that of Ni. The corrosion and wear performance of the composite coating are greatly influenced by the coating microstructure and thickness.
    Appears in Collections:[機械工程學系] 期刊論文

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