Formation of Nickel–Phosphorus Coatings Applied on the Components Manufactured from Nonferrous Metals and Alloys

Resumo

Some theoretical concepts about the internal stresses in an elastic coating and ways for relaxing of them are reported. These concepts are used in predicting the physicomechanical properties of nickel–phosphorus coatings. The role of surface curvature of a coated component and the layer thickness and the effect of heat treatment on the internal stresses after nickel-plating are considered. Moreover, the effect of heat treatment on the adhesive strength of coating, its wear-resistance, hardness, and fatigue strength is studied.