PLATED STEEL SHEET

专利名称：PLATED STEEL SHEET发明人：Takuya MITSUNOBU申请号：US15753150申请日：20161025

公开号：US20180245193A1公开日：20180830

专利附图：

摘要：An average chemical composition of a plating layer () and an intermetalliccompound layer () is represented by, in terms of mass %, Al: 10% to 40%, Si: 0.05% to 4%,Mg: 0% to 5%, and the balance: Zn and impurities. The plating layer () includes a firststructure () constituted from Al phases containing Zn in solid solution and Zn phases

dispersed in the Al phases and having an average chemical composition represented by,in terms of mass %, Al: 25% to 50%, Zn: 50% to 75%, and impurities: less than 2%, and aeutectoid structure () constituted from Al phases and Zn phases and having an averagechemical composition represented by, in terms of mass %, Al: 10% to 24%, Zn: 76% to90%, and impurities: less than 2%. In a cross section of the plating layer (), an area fractionof the first structure () is 5% to 40% and a total area fraction of the first structure () andthe eutectoid structure () is 50% or more, an area fraction of Zn phases () which arestructures containing 90% or more of Zn, contained in the plating layer () is 25% or less, atotal area fraction of intermetallic compound phases contained in the plating layer () is9% or less, and a thickness of the intermetallic compound layer () is 2 μm or less.

申请人：NIPPON STEEL & SUMITOMO METAL CORPORATION

地址：Tokyo JP

国籍：JP

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