Plated steel material having excellent processability and corrosion resistance
AssigneeHyundai Steel Company
InventorsSeon Jin Kim, Jae Min Lee
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Abstract
The present invention provides a plated steel material having excellent processability and corrosion resistance, the plated steel material comprising: a base iron; and a hot-dip alloy-plated layer formed on the base iron, the hot-dip alloy-plated layer comprising, in wt %, 5-30% of Al, 2-10% of Mg, and a balance of Zn and other inevitable impurities, wherein, in a cross-section in the hot-dip alloy-plated layer, the area fraction of a MgZn2 phase is 20-70%, and the ratio of the area fraction of an Al-containing phase to the area fraction of the MgZn2 phase is 1-70%.
Claims6
A plated steel material having excellent workability and corrosion resistance, comprising:
- a base steel;
- and
- a hot-dip alloy-plated layer formed on the base steel,
- wherein the hot-dip alloy-plated layer consists of, by wt. %, 5% to 30% of Al, 2% to 10% of Mg, a balance of Zn and inevitable impurities, and
- wherein an area fraction of a MgZn2 phase where a ratio of an average minor axis length (a) to an average major axis length (b) is 0.5 or less in the entire MgZn2 phase on a surface of the hot-dip alloy-plated layer is 70% or less.
Dependencies are inferred from the claim text.