| 摘要 |
A high-strength hot-dip galvanized steel sheet containing a main component, the steel sheet having at least 40 wt% of ferrite as a main phase in terms of the volumetric ratio, and 8-60% inclusive of residual austenite, the remaining structure comprising one or more of bainite, martensite, or pearlite. Austenite particles within a range where the average residual stress (σR) thereof satisfies the expression -400MPa≤σR≤200MPa (formula (1)) are present in an amount of 50% or more in the hot-dip galvanized steel sheet. The surface of the steel sheet has a hot-dip galvanized layer containing less than 7 wt% of Fe, the remainder comprising Zn, Al and inevitable impurities. |
