Non-adherent coatings

Chemical attack on a metallic surface by the corrosive environment (electrolyte), or electrochemical displacement during electro-deposition of more noble metals on less noble-metal-articles (such as deposition of gold and silver on copper or copper and nickel on iron) result in non-adherent coatings and contamination of the bath. Quicking and Striking are the two processes generally employed to overcome these difficulties. 

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