WEAR-RESISTANT COATING AND METHOD FOR MANUFACTURING THEREOF

FIELD: protective coatings. SUBSTANCE: coating is composed of nickel-based self-fluxing matrix alloy containing chromium, silicon, boron, and, distributed therein, particles of strengthening additive based on double boride, said particles being distributed in matrix alloy in layers: outer layer cont...

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Bibliographische Detailangaben
Hauptverfasser:	RUDENSKAJA N.A, KOPYSOV V.A, ZHILJAEV V.A
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	FIELD: protective coatings. SUBSTANCE: coating is composed of nickel-based self-fluxing matrix alloy containing chromium, silicon, boron, and, distributed therein, particles of strengthening additive based on double boride, said particles being distributed in matrix alloy in layers: outer layer contains 73 to 80% of total amount of strengthening additive, middle one 20 to 27%, and lower one contains no such particles. To apply coatings, powder blend prepared by mixing self-fluxing alloy with strengthening additive having particle size 40-90 mcm (22-36% particles finer than 50 mcm and 64-78% particles coarser than 50 mcm) is introduced into plasma jet and then deposited. EFFECT: enabled protection of parts against various-type wear. 2 cl, 2 tbl, 6 ex