Erosion resistant cermet linings for oil and gas exploration, refining and petrochemical processing applications
US8323423B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2010 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K1C fracture toughness of at least 7.0 MPa-m1/2. The metal surfaces may also be provided with a hot erosion resistant cermet coating having a HEAT erosion resistance index of at least 5.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.