Hot-dip galvanized steel sheet, member formed using hot-dip galvanized steel sheet, automobile frame structural component or automobile reinforcement component comprising member, and method for producing hot-dip galvanized steel sheet and member

A hot-dip galvanized steel sheet comprising a base steel sheet and a hot-dip galvanized layer on a surface of the base steel sheet, wherein

• the base steel sheet comprises
• a chemical composition containing, in mass %,
• C:
• 0.030% or more and 0.500% or less,
• Si:
• 0.01% or more and 2.50% or less,
• Mn:
• 0.10% or more and 5.00% or less,
• P:
• 0.100% or less,
• S:
• 0.0200% or less,
• Al:
• 1.000% or less,
• N:
• 0.0100% or less, and
• O:
• 0.0100% or less,
• with the balance being Fe and inevitable impurities, and
• a steel structure such that at a ¼ thickness position of the base steel sheet,
• an area ratio of martensite is 30% or more,
• an area ratio of ferrite is 70% or less,
• an area ratio of retained austenite is 10% or less,
• at least one of ferrite and retained austenite is included, and
• in a region up to a depth of 10 μm from the surface of the base steel sheet,
• the area ratio of martensite is 5% or more, and the area ratio of martensite is 80% or less of the area ratio of martensite at the ¼ thickness position of the base steel sheet, and
• a diffusible hydrogen content in a low temperature region within the base steel sheet is 0.015 mass ppm or less, the diffusible hydrogen content being an amount of hydrogen released when the base steel sheet is heated to 50° C.