| 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%. |
