PROCESS FOR COATING METALLIC COMPONENTS WITH NICKEL-BORON ALLOYS BY CHEMICAL REACTION.

摘要

The present invention refers to a process for depositing, by immersion, a homogeneous film made of a nickel-boron alloy over metallic parts of ferrous alloys subjected to wear for increasing the hardness and resistance thereof to corrosion. The content of boron is of 3-6% by weight and 97-94% by weight of nickel, the thickness of the film may range from 2 Ám to 100 Ám, depending on the immersion time. The deposition does not require the use of an external electric current.