Structural member

A structural member 10 includes a base material 100 and a protective film 200 covering a surface 110 of the base material 100. When, in a cross-section of the protective film 200 cut perpendicularly to the surface 110, a proportion of pores per unit area is defined as porosity, the porosity in a fir...

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Bibliographische Detailangaben
Hauptverfasser:	OTSUKA, NOBUTOMO, KINJO, ATSUSHI, TODA, FUMITO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS 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 ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SEMICONDUCTOR DEVICES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A structural member 10 includes a base material 100 and a protective film 200 covering a surface 110 of the base material 100. When, in a cross-section of the protective film 200 cut perpendicularly to the surface 110, a proportion of pores per unit area is defined as porosity, the porosity in a first portion 201 that is a portion of the cross-section is lower than the porosity in a second portion 202 that is a portion of the cross-section closer to the base material 100 side thereof than the first portion 201.