METHOD OF ELECTROLYTIC DEPOSITION OF IRON-TUNGSTEN ALLOY

FIELD: electrolytic deposition of hard, wear-resistant coatings, particularly, iron-tungsten coatings applicable in restoration and hardening of part surfaces. SUBSTANCE: method includes deposition of iron-tungsten coating with use of alternating asymmetric current with 1.2-6 asymmetry coefficient,...

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Hauptverfasser:	SEREBROVSKAJA L.N, SEREBROVSKIJ V.V, KONJAEV N.V, BATISHCHEV A.N, SEREBROVSKIJ V.I
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Beschreibung
Zusammenfassung:	FIELD: electrolytic deposition of hard, wear-resistant coatings, particularly, iron-tungsten coatings applicable in restoration and hardening of part surfaces. SUBSTANCE: method includes deposition of iron-tungsten coating with use of alternating asymmetric current with 1.2-6 asymmetry coefficient, electrolyte temperature of 20-40 C, cathode current density 35-40 A/sq. dm, electrolyte pH 0.8. Electrolyte contains the following components, g/l: sodium tungstate, 2-10; ferrous chloride, 300-400; citric acid, 5-15; hydrochloric acid, 5-15. EFFECT: high microhardness and wear resistance of coatings produced from claimed electrolyte, and high coating deposition rate.