公开(公告)号：US11753709B2

公开(公告)日：2023-09-12

申请号：US16471289

申请日：2017-12-21

申请人： POSCO

发明人： Suk-Kyu Lee ,  Sang-Heon Kim ,  Kwang-Tai Min ,  Yon-Kyun Song

IPC分类号： C23C2/06 ,  C22C18/00 ,  C23C2/26

CPC分类号： C23C2/06 ,  C22C18/00 ,  C23C2/26

摘要： Provided are a hot-dipped galvanized steel material and a method for manufacturing the same. The hot-dipped galvanized steel material comprises an iron substrate and a hot-dipped galvanizing layer formed on the iron substrate, wherein the hot-dipped galvanizing layer comprises, by wt %, 0.01 to 0.5% of Al, 0.01 to 1.5% of Mg, 0.05 to 1.5% of Mn, 0.1 to 6% of Fe, and the balance of Zn and inevitable impurities, with a Zn—Fe—Mn based alloy phase present at the interface between the iron substrate and the hot-dipped galvanizing layer, and an area ratio of the Zn—Fe—Mn-based alloy phase to the hot-dipped galvanizing layer ranging from 1 to 60%.