ALUMETIZATION CATALYTICALLY BY RARE-EARTH

This invention introduces technique of catalytic aluminizing with rare-earth elements. After adding rare-earth elements of ytterbium, hafnium, tantalum, the hot dipped molten aluminium is used to aluminize the surface of iron and steel workpiece. While maintaining its existing mechanical properties,...

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU WANG, HUANG ZHIXUE, LI QUIRONG
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS 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:	This invention introduces technique of catalytic aluminizing with rare-earth elements. After adding rare-earth elements of ytterbium, hafnium, tantalum, the hot dipped molten aluminium is used to aluminize the surface of iron and steel workpiece. While maintaining its existing mechanical properties, the original workpiece is added with new performance, e.g. corrosion-resistance, antioxidation at high temp., high strength and long service life. It can substitute expensive stainless steel.