发明名称 HOT-DIP GALVANIZED STEEL SHEET AND PROCESS FOR PRODUCING SAME
摘要 <p>A hot-dip galvanized steel sheet includes: a steel sheet; and a plated layer on a surface of the steel sheet, a microstructure contains, by volume fraction, equal to or more than 20% and equal to or less than 99% in total of one or two of martensite and bainite, a residual structure contains one or two of ferrite, residual austenite of less than 8% by volume fraction, and pearlite of equal to or less than 10% by volume fraction, tensile strength is equal to or greater than 980 MPa, the plated layer is a hot-dip galvanized layer which contains oxides including one or two or more of Si, Mn, and Al, contains equal to or less than 15 mass% of Fe, and a remainder including Zn, Al, and unavoidable impurities, and when a cross section including the steel sheet and the hot-dip galvanized layer is seen in a sheet thickness direction, a projected area ratio is equal to or more than 10% and equal to or less than 90%.</p>
申请公布号 KR20140068122(A) 申请公布日期 2014.06.05
申请号 KR20147008479 申请日期 2012.09.28
申请人 NIPPON STEEL & SUMITOMO METAL CORPORATION 发明人 AZUMA MASAFUMI;WAKABAYASHI CHISATO;NOZAKI TAKAYUKI;TAKAHASHI MANABU;FUJITA NOBUHIRO
分类号 C23C2/06;C22C18/00;C22C38/00 主分类号 C23C2/06
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