STEEL SHEET FOR HOT-DIP GALVANIZING, HOT-DIP GALVANIZED STEEL SHEET, AND ALLOYED HOT-DIP GALVANNEALED STEEL SHEET

A steel sheet may be used for hot-dip galvanizing capable of manufacturing hot-dip galvannealed steel sheet(s) with a high Si content and in which alloying unevenness is suppressed. Such a steel sheet for hot-dip galvanizing may include an internal oxide layer containing an oxide of Si between a sur...

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Bibliographische Detailangaben
Hauptverfasser:	YU, Hang, MAEDA, Takayuki, SHIGE, Hiroo, IRIE, Hiroshi, KAWAKAMI, Akira
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS 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 FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A steel sheet may be used for hot-dip galvanizing capable of manufacturing hot-dip galvannealed steel sheet(s) with a high Si content and in which alloying unevenness is suppressed. Such a steel sheet for hot-dip galvanizing may include an internal oxide layer containing an oxide of Si between a surface layer of the steel sheet and a steel sheet base portion. The Si content in a chemical composition of the steel sheet may be 1.0 mass % or more. A solid solution Si amount from a surface of the steel sheet to a depth of 1 μm measured at all four positions including positions of 10 mm, 30 mm, and 50 mm from an edge in a coil width direction and a position of a center in the coil width direction at a rear end in a rolling direction of the steel sheet for hot-dip galvanizing may be 1.4 wt. % or less.