FORMATION OF CORROSION AND WEAR RESISTANT COMPOSITE FILM ON SURFACE OF METALLIC BASE MATERIAL

PURPOSE:To improve the corrosion and wear resistances of a metallic base material as a low-grade material bar forming a thermally sprayed layer on the surface of the base material, depositing a metal in the micropores in the layer by electroless plating and sealing the micropores. CONSTITUTION:An el...

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Bibliographische Detailangaben
Hauptverfasser:	TSURU SATOSHI, KAYANO ISAMU
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:	PURPOSE:To improve the corrosion and wear resistances of a metallic base material as a low-grade material bar forming a thermally sprayed layer on the surface of the base material, depositing a metal in the micropores in the layer by electroless plating and sealing the micropores. CONSTITUTION:An electrically nonconductive material such as Al2O3, AlN or SiO2 or an electrically conductive material such as Ni, Cr, Al, TiN or TiC is thermally sprayed on the surface of a metallic base material such as carbon steel as a low-grade material to form a thermally sprayed layer. A metal such as Ni, Pb or Cu is then deposited in the micropores in the layer by electroless plating and the micropores are sealed.