Method for increasing fracture toughness in aluminum-based diffusion coatings
US6302975A · kind A · utility
2Cited by
13References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1999 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Oct 12, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C4/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for improving the fracture toughness for aluminum-based diffusion coatings by thermal spray means to simultaneously apply aluminum, chromium, boron, and/or silicon onto a steel workpiece, followed by heat treatment of the workpiece for a sufficient time to cause the aluminum, chromium, boron, and/or silicon to diffuse into the workpiece. The resulting diffusion coating demonstrates improved fracture toughness and does not necessitate the use of a slurry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.