Steel Component Provided with a Metallic Coating Giving Protection Against Corrosion

US2016160322A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016160322-A1
Application numberUS-201615046884-A
CountryUS
Kind codeA1
Filing dateFeb 18, 2016
Priority dateAug 25, 2009
Publication dateJun 9, 2016
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

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).

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 of ZnNi alloy is more than 2 μm thick. 4 . The steel component according to claim 1 , wherein the coating of ZnNi alloy 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 of ZnNi alloy. 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

  • C22C18/00Primary

    Alloys based on zinc · CPC title

  • C25D3/56Primary

    of alloys · CPC title

  • containing silicon · CPC title

  • After-treatment of electroplated surfaces · CPC title

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What does patent US2016160322A1 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 C22C18/00. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jun 09 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).