Corrosion resistant cemented carbide
US6524364B1 · kind B1 · utility
4Cited by
13References
12Claims
0Family size
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Key dates
| Filing date | May 15, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | May 15, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C29/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A corrosion and oxidation resistant cemented carbide contains WC and 6-15 wt. % binder phase whereby the binder phase contains 8-12 wt. % of a corrosion resisting addition with an average WC grain size of 3-10 &mgr;m. Cemented carbide is obtained with selection of a total carbon content of 6.13−((0.05±0.007)×binder phase content in wt. %).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.