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US 11,697,266 B2Granted
Plated steel
AssigneeNippon Steel Corporation
InventorsTakuya Mitsunobu, Jun Maki, Hiroshi Takebayashi, Takehiro Takahashi, Kohei Tokuda
Life of this patent
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Abstract
A plated steel includes: a steel; and a plating layer that is provided on a surface of the steel, in which the plating layer includes, by mass %, Al: 5.00% to 35.00%, Mg: 2.50% to 13.00%, Fe: 5.00% to 40.00%, Si: 0% to 2.00%, Ca: 0% to 2.00%, and a remainder of Zn and impurities, and in a cross section of the plating layer, the area fraction of a Zn solid-solution Fe2Al5 phase in which 5% or more of Zn is solid-soluted is 10% to 60% and the area fraction of a MgZn2 phase is 10% to 90%.
Claims20
A plated steel comprising:
- a steel;
- and
- a plating layer that is provided on a surface of the steel,
- wherein the plating layer includes, by mass %,
- Al:
- 5.00% to 35.00%,
- Mg:
- 2.50% to 13.00%,
- Fe:
- 5.00% to 40.00%,
- Si:
- 0% to 2.00%,
- Ca:
- 0% to 2.00%, and
- a remainder of Zn and impurities, and
- in a cross section in a thickness direction of the plating layer, an area fraction of a Zn solid-solution Fe2Al5 phase in which 5% by mass % or more of Zn is solid-soluted is 10% to 60% and an area fraction of a MgZn2 phase is 10% to 90%.
13 more elements
Dependencies are inferred from the claim text.