Hot-dip galvanized steel sheet and method for producing same, and member

A hot-dip galvanized steel sheet comprising a base steel sheet and a galvanized layer on a surface of the base steel sheet, and having a tensile strength of 1,180 MPa or more, wherein

• the base steel sheet has
• a chemical composition containing, in mass %,
• C:
• 0.090% or more and 0.390% or less,
• Si:
• 0.01% or more and 2.50% or less,
• Mn:
• 2.00% or more and 4.00% or less,
• P:
• 0.100% or less,
• S:
• 0.0200% or less,
• Al:
• 0.100% or less, and
• N:
• 0.0100% or less,
• with the balance being Fe and inevitable impurity, the steel microstructure comprising,
• at a ¼ sheet thickness position of the base steel sheet,
• area ratio of martensite:
• 70% or more,
• area ratio of ferrite:
• 10% or less, and
• area ratio of retained austenite:
• 0.5% or more and less than 10.0%,
• wherein, among crystal grains constituting the retained austenite, the number ratio of crystal grains having an aspect ratio of 2.0 or less is more than 50%,
• a number of bins having a frequency of 0.25 or more in a histogram of hardness distribution at the ¼ sheet thickness position of the base steel sheet is 1, and in terms of Vickers hardness, a class range of bins in the histogram is from more than (n−1)×20+450 to n×20+450 or less, where n is an integer from 1 to 10,
• in a surface layer of the base steel sheet, the area ratio of quenched martensite is 80% or less, where the surface layer of the base steel sheet is a region from the surface of the base steel sheet to a depth of 10 μm, and
• surface layer softening thickness of the base steel sheet is 10 μm or more and 100 μm or less,
• wherein an amount of low temperature range diffusible hydrogen in the base steel sheet is 0.015 mass ppm or less,
• where the amount of low temperature range diffusible hydrogen in the base steel sheet is the amount of hydrogen released from the base steel sheet when heated from room temperature to 50° C.