Burnished chromium plated layer on a decorating bar

 

The decorating bar becomes provided with a chromium coating for protection against corrosion and for optical reasons. The coating can get directly deposited on the untreated workpiece surface or the workpiece becomes polished first, to get a surface with high luster . The most common chromium coatings lies between 0,5 and 5 µm . A very thin interlayer of copper is usually deposited between the material and the chromium layer. This coating method is always advantageous, when burnished surfaces, in connection with protection against corrosion, are standing in the foreground. Basic material of this sample is 1.0718 (11SMnPb30) .

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