Encyclopedia

Nickel plating

Nickel plating is a widely used surface engineering process in which a layer of nickel is applied to a metallic surface. This process offers a number of advantages and is used in various industries and applications.

The main purpose of nickel plating is to protect the surface of the base material and improve its mechanical and corrosion resistant properties. Nickel coatings are known for their hardness and resistance to various environmental conditions, including moisture and oxidative exposure.

There are several methods to apply a nickel coating, including:

  1. Electrolytic nickel plating: This is the most common process, in which the material to be plated is immersed in an electrolyte bath as the cathode, and nickel is deposited on the surface by electrolysis.
  2. Electroless nickel plating: This is a chemical process in which nickel ions from a solution are applied to the surface of the base material. This process is particularly suitable for plating complex-shaped parts.
  3. Thermal spraying: In this method, molten nickel is sprayed onto the surface and forms a coating when it solidifies on the substrate.

The applications of nickel plating are many. In the automotive industry, nickel plating is commonly used to protect parts such as bumpers and rims from corrosion. In the electronics industry, electrical contacts and circuit boards are coated with nickel to increase their conductivity and corrosion resistance. In the construction industry, nickel plating is used to protect metal parts such as door hardware and railings from the elements.

In addition, nickel plating also offers aesthetic benefits. It can be used to give surfaces a shiny, silver or chrome-like appearance, which is important in the furniture industry and jewelry manufacturing.

Overall, nickel plating is a proven surface engineering process that improves the durability, beauty and functionality of metal parts and products. The selection of the appropriate method and the right nickel alloy depends on the specific requirements and intended use.

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This definition is taken from the surface technology encyclopedia from Surface Technology Online. You can find many more technical terms from the surface technology industry in our lexicon overview.

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