(Cathodic arc deposition, CAD)於ADI表面披覆CrAlSiN陶瓷薄膜，再探討後熱處理對ADI披
In this study, the ductile iron was heat-treated to form austempered ductile iron (ADI). In
order to maintain its mechanical properties and reduce surface spheroidal graphite pores, the two
surface modification methods of electroplating copper and cathodic arc deposition were used.
Cathodic arc deposition (CAD) method was used to coat CrAlSiN ceramic film on the surface of
ADI, and then the influence of the post heat treatment on the wear characteristics of ADI clad
both electroplating copper and CrAlSiN film was discussed. The experimental results showed
that the use of electroplating copper as the intermediary layer could effectively improve the
adhesion of the CrAlSiN film, and after post-heat treatment, the Cr2N phase was produced and
the compactness of the film also was improved. Such a result, the surface hardness of ADI could
be improved and have the better wear resistance.
Keywords: Austempered ductile iron, Electroplating copper, CrAlSiN ceramic film, Post heat
treatment, Wear resistance.
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