Abstract: Lead-free nickel phosphorus dispersion alloy present on a metallic substrate surface, obtainable by electroless deposition in an electrolyte which contains 4 to 7 g/l of nickel ions; 15 to 40 g/l of hypophosphite; at least one stabiliser; 5 to 400 mg/l of an alkylaryl oxydialkyl benzyl ammonium chloride or a partially fluorinated betaine; 50 to 60 g/l of a carboxylic acid-containing complexing agent A; 5 to 40 g/l of a carboxylic acid-containing complexing agent B different from A; 4 to 10 g/l of dispersed particles which differ from the composition of the nickel/phosphorus alloy; and contains no boric acid or borates, and articles coated therewith.