Fabrication method for a multi-layer substrate

Patent metadata

Field	Value
Publication number	US-11447874-B2
Application number	US-202016810350-A
Country	US
Kind code	B2
Filing date	Mar 5, 2020
Priority date	Apr 4, 2014
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

A method for fabricating a substrate provided with a plurality of layers, includes: providing a steel substrate with an oxide layer including metal oxides on the steel substrate; providing a metal coating layer directly on the oxide layer, the metal coating layer including: at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process; and providing an anti-corrosion coating layer directly on the metal coating layer.

First claim

What is claimed is:

1. A method for fabricating a substrate provided with a plurality of layers, the method comprising:
providing a steel substrate with an oxide layer including metal oxides on the steel substrate;
providing a metal coating layer directly on the oxide layer, the metal coating layer including: at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process; and
providing an anti-corrosion coating layer directly on the metal coating layer;
wherein the providing of the anti-corrosion layer includes depositing the anti-corrosion layer by an electro-deposition process.

2. The method as recited in claim 1 wherein the providing of the metal coating layer includes depositing the metal coating layer by a vacuum deposition process.

3. The method as recited in claim 1 wherein the providing of the metal coating layer includes depositing the metal coating layer by an electro-deposition process.

4. The method as recited in claim 1 wherein the providing of the metal coating layer occurs includes a magnetron cathode pulverization process.

5. The method as recited in claim 1 wherein the steel substrate with the oxide layer is provided without pickling the oxide layer.

6. The method as recited in claim 1 wherein the oxide layer is in direct contact with the steel substrate.

7. A method for fabricating a substrate provided with a plurality of layers, the method comprising:
providing a steel substrate
depositing an aluminum-based coating on the steel substrate, an oxide layer being directly on the aluminum-based coating, the oxide layer including metal oxides;
providing a metal coating layer directly on the oxide layer, the metal coating layer including: at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process; and
providing an anti-corrosion coating layer directly on the metal coating layer.

8. The method as recited in claim 7 wherein the aluminum-based coating is deposited by hot dipping.

9. The method as recited in claim 7 wherein the aluminum-based coating has a thickness of between 10 and 30 μm.

10. The method as recited in claim 7 , wherein the providing of the anti-corrosion layer includes depositing the anti-corrosion layer by an electro-deposition process.

11. The method as recited in claim 7 wherein the providing of the metal coating layer includes depositing the metal coating layer by a vacuum deposition process.

12. The method as recited in claim 7 wherein the providing of the metal coating layer includes depositing the metal coating layer by an electro-deposition process.

13. The method as recited in claim 7 wherein the providing of the metal coating layer includes a magnetron cathode pulverization process.

14. A method for fabricating a substrate provided with a plurality of layers, the method comprising:
providing a steel substrate with an oxide layer including metal oxides on the steel substrate;
providing a metal coating layer directly on the oxide layer, the metal coating layer including: at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process; and
providing an anti-corrosion coating layer directly on the metal coating layer; and
providing a further metal oxide layer directly on the anti-corrosion coating layer, a further metal coating layer directly on the further metal oxide layer; and a further anti-corrosion coating layer directly on the further metal coating layer.

15. The method according to claim 14 , wherein the further metal coating layer includes at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process.

16. The method as recited in claim 14 , wherein the providing of the anti-corrosion layer includes depositing the anti-corrosion layer by an electro-deposition process.

17. The method as recited in claim 14 wherein the providing of the metal coating layer includes depositing the metal coating layer by an electro-deposition process.

18. A method for fabricating a substrate provided with a plurality of layers, the method comprising:
providing a steel substrate with an oxide layer including metal oxides on the steel substrate;
providing a metal coating layer directly on the oxide layer, the metal coating layer including: at least 8% by weight nickel; at least 10% by weight chromium; and a remainder being iron and impurities from a fabrication process; and
providing an anti-corrosion coating layer directly on the metal coating layer;
wherein the providing of the metal coating layer includes depositing the metal coating layer by an electro-deposition process.

19. The method as recited in claim 18 wherein the providing of the anti-corrosion layer includes depositing the anti-corrosion layer by a vacuum deposition process.

20. The method as recited in claim 18 wherein the steel substrate with the oxide layer is provided without pickling the oxide layer.

21. The method as recited in claim 18 wherein the oxide layer is in direct contact with the steel substrate.

Assignees

• Arcelormittal

Inventors

• Chaleix Daniel
• Silberberg Eric
• Schmitz Bruno
• Vanden Eynde Xavier
• Pace Sergio

Classifications

• C23C14/025

  Metallic sublayers · CPC title

• Y10T428/24967

  Absolute thicknesses specified · CPC title

• C23C14/5846

  Reactive treatment · CPC title

• C25D5/14

  two or more layers being of nickel or chromium, e.g. duplex or triplex layers · CPC title

• B32B15/013

  one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium · CPC title