Essays about: "zinc-nickel coatings"

Found 2 essays containing the words zinc-nickel coatings.

  1. 1. Material characterization of multi-layered Zn-alloy coatings on fasteners : Effects on corrosion resistance, electrical conductivity and friction

    University essay from KTH/Materialvetenskap

    Author : Ante Vallien; [2018]
    Keywords : ZnNi; zinc alloy; multi-layered coating; electrodeposited coating; fasteners; corrosion resistance;

    Abstract : Electroplated zinc-alloy coatings have been used on fasteners in the automotive industry for many years. The coating often consists of three layers: a zinc-alloy layer, a passivation layer and a sealer or top-coat. READ MORE

  3. 2. Release rates and environmental impact of zinc-nickel coatings in the automotive industry

    University essay from KTH/Materialvetenskap

    Author : Johan Åslund; [2006]
    Keywords : automotive corrosion; metal release; nickel; zinc; zinc-nickel coatings; Cr VI free; surface treatment;

    Abstract : At present the automotive industry is due to an EU directive, replacing hexavalent chrome on vehicles. This is an extensive job as hexavalent chrome is used all over the vehicle and to large extent on fasteners (screws, nuts, rivets etc.). Chrome (VI) is used as a passivating layer on mainly zinc-iron. READ MORE