Enhanced efficiency electro-enhancement process for surfaces
US10240246B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 2016 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Apr 25, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D21/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This disclosure provides systems and methods for improved electro-enhancement of surfaces of workpieces. The systems and methods can include immersing a metal workpiece in a salt bath and applying a time-varying electric current that has periods of high current with periods of lower current between. The systems and methods provide borided metal workpieces that contain preferred borides on the surface and lack less preferred borides. For example, the systems and methods can provide borided steel having Fe2B and substantially lacking FeB on the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.