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Steel component provided with a metallic coating giving protection against corrosion
US10053752B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10053752-B2 |
| Application number | US-201615046884-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2016 |
| Priority date | Aug 25, 2009 |
| Publication date | Aug 21, 2018 |
| Grant date | Aug 21, 2018 |
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- Title
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Abstract
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A steel component having a steel substrate containing 0.3-3 wt.-% manganese, and an anti-corrosion coating applied to the steel substrate including a coating layer having at least 70 mass-% α-Fe(Zn,Ni) mixed crystal, the remainder being intermetallic compounds of Zn, Ni and Fe, and which has at its free surface a Mn-containing layer in which the Mn is present in metallic or oxidic form.
First claim
Opening claim text (preview).
The invention claimed is: 1. A steel component comprising a steel substrate containing 0.3-3 wt.-% manganese, and having an anti-corrosion coating applied to the steel substrate comprising a coating layer at least 70 mass-% of which is composed of α-Fe(Zn,Ni) mixed crystal, the remainder of intermetallic compounds of Zn, Ni and Fe, and which has at its free surface a Mn-containing layer in which the Mn is present in metallic or oxidic form. 2. The steel component according to claim 1 , wherein the intermetallic compounds are dispersed in the α-Fe(Zn,Ni) mixed crystal. 3. The steel component according to claim 1 , wherein the coating layer is more than 2 μm thick. 4. The steel component according to claim 1 , wherein the coating layer contains 1-15 wt.-% Ni. 5. The steel component according to claim 1 , wherein the Mn content of the Mn-containing layer is 1-18 wt.-%. 6. The steel component according to claim 1 , wherein the thickness of the Mn-containing layer is 0.1-5 μm. 7. The steel component according to claim 1 , wherein the anti-corrosion coating comprises a zinc-rich layer lying on the coating layer. 8. The steel component according to claim 1 , wherein an organic coating is applied to the Mn-containing layer.
Assignees
Inventors
Classifications
by heat-treatment · CPC title
with additional, spatially distinct nonmetal component · CPC title
containing silicon · CPC title
containing aluminium · CPC title
- C25D3/56Primary
of alloys · CPC title
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Frequently asked questions
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- What does patent US10053752B2 cover?
- A steel component having a steel substrate containing 0.3-3 wt.-% manganese, and an anti-corrosion coating applied to the steel substrate including a coating layer having at least 70 mass-% α-Fe(Zn,Ni) mixed crystal, the remainder being intermetallic compounds of Zn, Ni and Fe, and which has at its free surface a Mn-containing layer in which the Mn is present in metallic or oxidic form.
- Who is the assignee on this patent?
- Thyssenkrupp Steel Europe Ag
- What technology area does this patent fall under?
- Primary CPC classification C25D3/56. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 21 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).