Hot-stamp-molded article

1. A hot-stamped article comprising:

a base steel sheet containing, as chemical components, by mass %,

C: 0.15% or more and less than 0.70%,

Si: 0.005% or more and 0.250% or less,

Mn: 0.30% or more and 3.00% or less,

sol. Al: 0.0002% or more and 0.500% or less,

P: greater than 0% to 0.100%,

S: greater than 0% to 0.1000%,

N: greater than 0% to 0.0100%,

Nb: 0% or more and 0.150% or less,

Ti: 0% or more and 0.150% or less,

Mo: 0% or more and 1.000% or less,

Cr: 0% or more and 1.000% or less,

B: 0% or more and 0.0100% or less,

Ca: 0% or more and 0.0100% or less, and

REM: 0% or more and 0.30% or less

with a remainder including Fe and impurities; and

a plating layer on a surface of the base steel sheet, the plating layer being attached to a single surface in an amount of 10 g/m 2 or more and 90 g/m 2 or less and having a Ni content of 10 mass % or more and 25 mass % or less with a remainder including Zn and impurities,

wherein a metallographic structure of a surface layer region that is a region from the surface of the base steel sheet to a depth of 50 μm in the base steel sheet includes 80.0% or more of martensite and 8.0% or more of residual austenite in terms of area percentage, and

a concentration of Ni in the surface layer region is 8 mass % or more.

2. The hot-stamped article according to claim 1 ,

wherein the base steel sheet contains, as chemical components, by mass %, one or more selected from the group of

Nb: 0.010% or more and 0.150% or less,

Ti: 0.010% or more and 0.150% or less,

Mo: 0.005% or more and 1.000% or less,

Cr: 0.005% or more and 1.000% or less,

B: 0.0005% or more and 0.0100% or less,

Ca: 0.0005% or more and 0.0100% or less, and

REM: 0.0005% or more and 0.30% or less.