STEEL SHEET FOR HOT PRESS AND MANUFACTURING METHOD THEREOF

Disclosed is a steel sheet for hot press forming, which includes: a base steel sheet; and a plating layer disposed on the base steel sheet and including a diffusion layer and a surface layer that are sequentially laminated, wherein the diffusion layer includes an Fe-Al alloy layer and an Fe-Al inter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Kim, Sung Min, Choi, Hye Rim
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Disclosed is a steel sheet for hot press forming, which includes: a base steel sheet; and a plating layer disposed on the base steel sheet and including a diffusion layer and a surface layer that are sequentially laminated, wherein the diffusion layer includes an Fe-Al alloy layer and an Fe-Al intermetallic compound layer that are sequentially disposed on the base steel sheet and each include silicon, and an area fraction of the Fe-Al intermetallic compound layer with respect to the diffusion layer is 84.5% to 98.0%.