Boron-hardened tungsten facing alloy
US3947269A · kind A · utility
7Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1972 |
| Grant date | Mar 30, 1976 |
| Priority date | — |
| Expiry date | Aug 24, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1284
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to an alloy useful as a hard facing material. The alloy comprises a matrix such as a nickel-chromium matrix containing a separate interstitially boron-hardened tungsten phase. The alloy is used as a facing or coating for a number of base materials, and in particular as a piston ring facing. The invention is also concerned with a method of making said alloy by utilizing a plasma jet spray technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.