| 摘要 |
<p>Provided is a hot-dip galvanized steel sheet which not only exhibits excellent adhesion of a deposit even after press working but also ensures excellent post-coating corrosion resistance even after press working and which has excellent surface appearance. According to the present invention, the structure of a zinc deposit is controlled, said zinc deposit being formed by hot-dip galvanizing, while an intermetallic compound with prescribed characteristics is formed at a deposit/steel sheet interface. Further, the solidification structure of the deposit and the surface texture thereof are controlled. Specifically, the amount of Al in the deposit is adjusted to 0.3 to 0.6% by mass. Further, the amount of Al in the intermetallic compound is adjusted to 0.12 to 0.22gm-2, and the mean particle diameter of the intermetallic compound is adjusted to 1μm or less, while the composition of the intermetallic compound is Fe2Al5 and/or FeAl3.</p> |
