HIGH-STRENGTH HOT-DIP ZINC PLATED STEEL MATERIAL HAVING EXCELLENT PLATING PROPERTIES AND METHOD FOR PREPARING SAME

• Main Authors: SOHN, Il-Ryoung, OH, Min-Suk, KANG, Dae-Young, KIM, Jong-Sang, KIM, Tae-Chul
• Format: Patent
• Language: English; French; German
• Published: 31.10.2018
• Subjects: 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

Disclosed are a hot-dip zinc plated steel material and a method for preparing same, the hot-dip zinc plated steel material comprising: base iron comprising 0.01-1.6 wt% of Si and 1.2-3.1wt% of Mn; a Zn-Al-Mg alloy plating layer; and an Al-rich layer formed on the interface of the base iron and Zn-Al-Mg alloy plating layer, wherein the rate of occupied surface area of the Al-rich layer is 70% or higher (including 100%) .