Method for improving mechanical properties by changing gradient nanotwinned structure of metallic material
US12000057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2018 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Nov 26, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for improving mechanical properties by changing a gradient nanotwinned structure of metallic materials is the technical field of nanostructured metallic materials. The method uses the inherent principles of microstructure and mechanical properties of metallic materials to improve materials mechanical properties. The metallic materials has a gradient nanotwinned structure. The principles of microstructure and mechanical properties of the metallic materials mean that the mechanical properties of the metallic materials are adjusted by changing the structural gradient scale of the nanotwinned structure. The method combines two strengthening methods of nanotwins and gradient structure, and can obviously improve the mechanical properties of the metallic materials. For pure copper materials of the gradient nanotwinned structure prepared by an electrodeposition technology: the yield strength is 481±15 MPa, the tensile strength is 520±12 MPa, the uniform elongation can be 7±0.5%, and the elongation to failure can be 11.7±1.3%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.