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US 12,716,114 B2Granted
Hot-dip plated steel material
AssigneeNippon Steel Corporation
InventorsTakuya Mitsunobu, Kohei Tokuda, Hiroshi Takebayashi
Life of this patent
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Abstract
The hot-dip plated steel material includes a steel material and a hot-dip plated layer disposed on a surface of the steel material, the hot-dip plated layer has a certain chemical composition, and the hot-dip plated layer has a diffraction intensity obtained from a result of X-ray diffraction measurement, the diffraction intensity satisfying a certain relationship.
Claims3
A hot-dip plated steel material comprising:
- a steel material;
- and
- a hot-dip plated layer disposed on a surface of the steel material,
- wherein the hot-dip plated layer has a chemical composition containing, in terms of mass %,
- Al:
- 10.0 to 20.0%,
- Mg:
- 3.0 to 15.0%,
- Fe:
- 0.01 to 15.0%,
- Si:
- 1.3 to 10.0%,
- Ni:
- 0 to 1.0%, and
- Ca:
- 0 to 4.0%, and
- further containing one or two or more elements selected from the element group consisting of Sb:
- 0 to 0.5%, Pb:
- 0 to 0.5%, Cu:
- 0 to 1.0%, Sn:
- 0 to 2.0%, Ti:
- 0 to 1.0%, Cr:
- 0 to 1.0%, Nb:
- 0 to 1.0%, Zr:
- 0 to 1.0%, Mn:
- 0 to 1.0%, Mo:
- 0 to 1.0%, Ag:
- 0 to 1.0%, Li:
- 0 to 1.0%, La:
- 0 to 0.5%, Ce:
- 0 to 0.5%, B:
- 0 to 0.5%, Y:
- 0 to 0.5%, P:
- 0 to 0.5%, Sr:
- 0 to 0.5%, Co:
- 0 to 0.5%, Bi:
- 0 to 0.5%, In:
- 0 to 0.5%, V:
- 0 to 0.5%, and W:
- 0 to 0.5%, in an amount of 5% or less in total, and
- the remainder:
- Zn and an impurity, and
- the hot-dip plated layer has a diffraction intensity obtained from a result of X-ray diffraction measurement, the diffraction intensity satisfying a relationship of the following formulas (1a) and (2a):
- 0.3≤I(002)MgZn2/{I(100)MgZn2+I(101)MgZn2}≤3.0 (1a)
- 3.0<I(111)α/I(200)α≤40.0 (2a)
- wherein, in the formula (1a), I(002)MgZn2 represents an MgZn2 phase (002) diffraction intensity, I(100)MgZn2 represents an MgZn2 phase (100) diffraction intensity, and I(101)MgZn2 represents an MgZn2 phase (101) diffraction intensity, and in the formula (2a), I(111)α represents an α phase (111) diffraction intensity and I(200)α represents an α phase (200) diffraction intensity.
43 more elements
Dependencies are inferred from the claim text.