Electroless nickel-boron-phosphorus coatings: Protective and functional properties

Mechanical, corrosion-protective, electrical, and magnetic properties of el ectroless Ni-B-P coatings plated with the simultaneous use of hypophosphite and a boron-containing compound (borane or dimethylamine borane) as reduce rs are studied in the initial state and after the heat treatment at 100-600 degreesC. The plating conditions ensuring enhanced hardness wear resistanc e, and heat stability, as well as low resistivity of the alloys are describ ed.