发明名称 HOT-STAMPING STEEL MATERIAL.
摘要  This hot-stamping steel material is provided with: a base material of a steel material that includes a tempered portion having hardness equal to 85% or less of the maximum quench hardness, where the maximum quench hardness is defined as the Vickers hardness observed at a position at a depth equivalent to one-fourth of the thickness from the surface layer in a material heated to a temperature of Ac3 degrees or above, held for thirty minutes, and then water-quenched; and a zinc plating layer formed over the tempered portion of the base material. The zinc plating layer includes a solid solution layer comprising a solid solution phase of Fe, and Zn in solid solution in the Fe, and a lamellar layer comprising the solid solution phase and a capital gamma phase. In the zinc plating layer, the area ratio of the lamellar layer is 30-100%, and the area ratio of the solid solution layer is 0-70%.
申请公布号 MX2016012677(A) 申请公布日期 2016.12.14
申请号 MX20160012677 申请日期 2015.03.31
申请人 NIPPON STEEL & SUMITOMO METAL CORPORATION 发明人 Hiroshi TAKEBAYASHI;Akihiro SENGOKU
分类号 C23C2/06;B21D22/20;C21D1/18;C22C38/58;C23C2/28 主分类号 C23C2/06
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