Zn-Al-Mg hot-dip plated steel sheet

This Zn-Al-Mg hot-dip plated steel sheet comprises a steel sheet and a hot-dip plated layer formed on the surface of the steel sheet. The hot-dip plated layer has an average composition including more than 10 mass% and no more than 22 mass% of Al, 1.0-10 mass% of Mg, and a remainder of Zn and impuri...

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Bibliographische Detailangaben
Hauptverfasser:	KOHIGASHI, YUSUKE, TANAKA, TOMOHITO, KAWAMURA, YASUAKI, TOBA, TETSUYA
Format:	Patent
Sprache:	chi ; eng
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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	This Zn-Al-Mg hot-dip plated steel sheet comprises a steel sheet and a hot-dip plated layer formed on the surface of the steel sheet. The hot-dip plated layer has an average composition including more than 10 mass% and no more than 22 mass% of Al, 1.0-10 mass% of Mg, and a remainder of Zn and impurities. When the thickness of the hot-dip plated layer is denoted by t and a 5-mm square cross-section parallel to the surface is exposed at any of a 3t/4 position, a t/2 position, or a t/4 position from the surface of the hot-dip plated layer, the area fraction of a [Zn phase] of the plating composition in at least one cross section is less than 20%.