Fe—Al-based plated hot-stamped member and manufacturing method of Fe—Al-based plated hot-stamped member

A Fe-Al-based plated hot-stamped member, comprising:

• a Fe-Al-based plated layer located on one surface or both surfaces of a base material, wherein
• the base material contains, in mass %,
• C:
• 0.1% or more and 0.5% or less
• Si:
• 0.01% or more and 2.00% or less
• Mn:
• 0.3% or more and 5.0% or less
• P:
• 0.001% or more and 0.100% or less
• S:
• 0.0001% or more and 0.100% or less
• Al:
• 0.01% or more and 0.50% or less
• Cr:
• 0.01% or more and 2.00% or less
• B:
• 0.0002% or more and 0.0100% or less
• N:
• 0.001% or more and 0.010% or less, and
• a balance comprising Fe and impurities, wherein
• the Fe-Al-based plated layer has a thickness of 10 μm or more and 60 μm or less, and formed by four layers of an A layer, a B layer, a C layer and a D layer sequentially from a surface toward the base material,
• each of the four layers is a Fe-Al-based inter metallic compound containing components listed below to be 100 mass % or less in total, with a balance comprising impurities, and
• the D layer further contains Kirkendall voids whose cross-sectional area is 3 μm2 or more and 30 μm2 or less for 10 pieces/6000 μm2 or more and 40 pieces/6000 μm2 or less,
• the A layer and the C layer:
• Al:
• 40 mass % or more and 60 mass % or less
• Fe:
• 40 mass % or more and less than 60 mass %
• Si:
• greater than 0 mass % and 5 mass % or less
• Mn:
• greater than 0 mass % and less than 0.5 mass %
• Cr:
• greater than 0 mass % and less than 0.4 mass %
• the B layer:
• Al:
• 20 mass % or more and less than 40 mass %
• Fe:
• 50 mass % or more and less than 80 mass %
• Si:
• over 5 mass % and 15 mass % or less
• Mn:
• 0.5 mass % or more and 10 mass % or less
• Cr:
• 0.4 mass % or more and 4 mass % or less
• the D layer:
• Al:
• greater than 0 mass % and less than 20 mass %
• Fe:
• 60 mass % or more and less than 100 mass %
• Si:
• greater than 0 mass % and 5 mass % or less
• Mn:
• 0.5 mass % or more and 2.0 mass % or less
• Cr:
• 0.4 mass % or more and 4 mass % or less.