$Method for preparing high temperature functional gradiet material by electronic beam smelting of refractory metal powder$

Method for preparing high temperature functional gradiet material by electronic beam smelting of refractory metal powder

The present invention is used in welding technology field. The electronic beam smelting process of refractory metal powder to prepare high temperature functional gradient material includes compounding refractory metal powder through homogeneous mixing, coating the powder to the end of base metal, fi...

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Bibliographische Detailangaben
Hauptverfasser:	SONGNIAN LOU, SHANGLEI YANG, XIAOHUAI XUE
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING 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 MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	The present invention is used in welding technology field. The electronic beam smelting process of refractory metal powder to prepare high temperature functional gradient material includes compounding refractory metal powder through homogeneous mixing, coating the powder to the end of base metal, fixing the workpiece with coated refractory metal powder on cooling backing plate, scanning with electronic beam of controllable scanning locus for heating, smelting the powder in the end of the workpiece via preheating, smelting and homogenizing to combine with base metal, and cooling to room temperature inside the furnace to prepare the high temperature gradient material. During preparing the functional gradient material, different gradient proportioning of the base metal powder and refractory metal powder realizes layer by layer gradient material control.