Deep rolling tool for blade fatigue life enhancement
US-2017157736-A1 · Jun 8, 2017 · US
Metallic components with enhanced mechanical strength through surface mechanical grinding
US11319606B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11319606-B2 |
| Application number | US-202016774925-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 28, 2020 |
| Priority date | Jan 30, 2019 |
| Publication date | May 3, 2022 |
| Grant date | May 3, 2022 |
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Abstract
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A method of strengthening a component made of a metallic material. The method includes subjecting the component to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure on the surface of the component, resulting in increased tensile strength of the component. A method of strengthening a component made of a TWIP steel. The method includes subjecting the component made of TWIP steel to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure containing a surface nanolaminate layer, a shear band layer, and an inner deformation twinned layer, resulting in increased tensile strength of the component. A component made of a TWIP steel containing a gradient structure with a surface nanolaminate layer, a shear band layer, and a deformation twinned layer.
First claim
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The invention claimed is: 1. A component made of a TWIP steel comprising gradient structure containing a surface nanolaminate layer, a shear band layer, and a deformation twinned layer. 2. The component of claim 1 , wherein the shear band layer has a twin spacing in the range of 10 nm to 80 nm. 3. The component of claim 2 , wherein the shear band layer contains deformation twins. 4. The component of claim 3 , wherein the deformation twins have a twin spacing in the range of 10 nm to 80 nm. 5. The component of claim 1 , wherein the surface nanolaminate layer has gradient structure wherein the grain size varies from 10 nm to 100 nm. 6. The component of claim 5 , wherein the surface nanolaminate layer has gradient structure wherein the grain size varies from 15 nm to 60 nm. 7. The component of claim 1 , wherein the deformation twinned layer has a twin spacing in the range of 10 nm to 100 micrometers. 8. The component of claim 7 , wherein the deformation twinned layer has a twin spacing in the range of 10 nm to 10 micrometers. 9. The component of claim 1 , wherein the component made of TWIP steel has tensile strength is in the range of 350 MPa to 600 Mpa. 10. The component of claim 1 , wherein the component is an automotive body component.
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- What does patent US11319606B2 cover?
- A method of strengthening a component made of a metallic material. The method includes subjecting the component to a mechanical grinding process incorporating a relative motion between a tool and the component forming a gradient structure on the surface of the component, resulting in increased tensile strength of the component. A method of strengthening a component made of a TWIP steel. The met…
- Who is the assignee on this patent?
- Purdue Research Foundation
- What technology area does this patent fall under?
- Primary CPC classification C21D7/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 03 2022 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).