FIELD: metallurgy.
SUBSTANCE: method includes electric deposition of cobalt-tungsten coatings with application of a pulse current with density of 10 A/dm2 from a mixed electrolyte having temperature of 55-65°C and the following composition, g/l: cobalt sulfate 12-15, sodium tungstate 40-100, ammonium citrate 40-60, tungsten carbide 10-50, pH 4-8. The produced coating is lubricated with a 10% solution of potassium hexacyanoferrate (II) in glycerine and processed by electric spark method with a graphite electrode EG-4 at the soft mode by working current of 1.2-1.5 A.
EFFECT: higher hardness and wear resistance of a coating.
3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTROLYTE COMPOSITION AND METHOD FOR OBTAINING NANOCRYSTALLINE COMPOSITE COATINGS BASED ON NICKEL-PHOSPHORUS-TUNGSTEN SYSTEM | 2021 |
|
RU2792096C1 |
| METHOD FOR APPLICATION OF COMPOSITE ELECTROCHEMICAL COATING OF COBALT-TUNGSTEN CARBIDE | 2023 |
|
RU2796775C1 |
| ELECTROLYTE FOR DEPOSITING NICKEL-TUNGSTEN ALLOY COATINGS | 0 |
|
SU1108139A1 |
| ELECTROLYTE AND METHOD FOR OBTAINING A NICKEL-BASED PROTECTIVE COATING | 2020 |
|
RU2764533C1 |
| METHOD FOR PRODUCING A COMPOSITE METAL-DISPERSED COATING, DISPERSED SYSTEM FOR PRECIPITATION OF COMPOSITE METAL-DISPERSED COATING AND METHOD OF ITS PRODUCTION | 2020 |
|
RU2746861C1 |
| METHOD FOR PRODUCING COMPOSITE METAL-DISPERSED COATING, DISPERSED SYSTEM FOR PRECIPITATION OF COMPOSITE METAL-DISPERSED COATING AND METHOD FOR ITS PRODUCTION | 2020 |
|
RU2746863C1 |
| METHOD OF PRODUCING A COBALT-TUNGSTEN CARBIDE COATING USING A PULSED ELECTROLYSIS MODE | 2023 |
|
RU2818200C1 |
| METHOD FOR PRODUCING COMPOSITE METAL-DIAMOND COATING ON THE SURFACE OF MEDICAL DEVICE, DISPERSED SYSTEM FOR PRECIPITATION OF METAL-DIAMOND COATING AND METHOD FOR ITS PRODUCING | 2020 |
|
RU2746730C1 |
| ELECTROLYTE FOR SETTLING COATING FROM HIGH-MELTING METALS AND METHOD OF OBTAINING SAME | 1982 |
|
SU1123321A1 |
