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    Volume 5, Issue 4 (December 2016)

    Special Issue Paper

    Production of Aluminide Layers on Copper and Copper Alloy

    (Received 6 November 2015; accepted 30 March 2016)

    Published Online: 15 December 2016

    CODEN: MPCACD

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    Abstract

    Intermetallic coatings were produced on pure copper and aluminum-bronze substrates using the powder aluminizing process. The treatments were carried out at 550°C and 600°C during 30, 60, 120, and 180 min. The layers were characterized by optical and scanning electron microscopy (SEM) associated with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and wear and hardness testing. The treatments performed at 600°C resulted in larger layer thicknesses compared to those produced at 550°C for both copper and bronze substrates. XRD analysis indicated the presence of intermetallic phases FeAl, FeAl3, and CuAl on aluminum-bronze. The layers produced on the Cu and aluminum-bronze substrates exhibited maximum hardness of approximately 750 HV and 870 HV, respectively. The adhesive wear resistance of all formed layers was higher than those of low-hardness substrates (100 HV in the case of copper and 300 HV for the aluminum-bronze). There were no significant differences in the wear resistances of the layers produced on the same substrate. The abrasion resistance of the aluminum-bronze layers were higher than those of the copper layers, because of the greater hardness of the layers formed on the aluminum-bronze.


    Author Information:

    Rêgo, G. C.
    Departamento de Engenharia de Materiais, Universidade de São Paulo/Escola de Engenharia de São Carlos, São Paulo,

    Takeya, G. S.
    Departamento de Engenharia de Materiais, Universidade de São Paulo/Escola de Engenharia de São Carlos, São Paulo,

    Neto, A. L.
    Departamento de Engenharia Mecânica, Universidade Tecnológica Federal do Paraná, Parana,

    Totten, G. E.
    Dept. of Mechanical and Materials Engineering, Portland State Univ., Portland, OR

    Casteletti, L. C.
    Departamento de Engenharia de Materiais, Universidade de São Paulo/Escola de Engenharia de São Carlos, São Paulo,


    Stock #: MPC20150068

    ISSN:2165-3992

    DOI: 10.1520/MPC20150068

    Author
    Title Production of Aluminide Layers on Copper and Copper Alloy
    Symposium ,
    Committee B08