Article prepared by depositing an alloying element on powder particles, and making the article from the particles
US7833472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | Mar 8, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2999/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An article is prepared by furnishing a plurality of powder particle substrates made of a substrate metal, providing a nonmetallic precursor of a metallic coating material, wherein the metallic coating material comprises an alloying element that is thermophysically melt incompatible with the substrate metal, contacting the powder particle substrates with the nonmetallic precursor, chemically reducing the nonmetallic precursor to form coated powder particles comprising the powder particle substrates having a surface-enriched layer of the metallic coating material thereon without melting the powder particle substrates, and processing the coated powder particles to form the article, without melting the powder particle substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.