| 摘要 |
<p>This galvanized steel sheet is provided with a steel plate and a plating layer on the surface of the steel plate. The steel plate has a steel chemical composition including, in mass%, C:0.05-0.40%, Si:0.5-3.0% and Mn:1.5-3.0%, has a microstructure containing ferrite, bainite, a 30% or higher volume fraction of tempered martensite, and an 8% or higher volume fraction of austenite, and has a 980MPa or greater tensile strength; the plating layer contains an oxide containing at least one chemical element selected from Si, Mn and Al, and has a 10% or greater projected area ratio of the aforementioned oxide when seen in a plate thickness direction cross-section that includes the steel plate and the plating layer.</p> |
