Surface oxidation of a titanium or titanium alloy article
US6210807A · kind A · utility
4Cited by
7References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 13, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C8/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The tribological behavior of titanium or titanium alloy article is improved by gaseous oxidation of the article at a temperature in the range of 500 to 725.degree. C. for 0.5 to 100 hours, the temperature and time being selected such as to produce an adherent surface compound layer containing at least 50% by weight of oxides of titanium having a rutile structure and a thickness of 0.2 to 2 .mu.m on a solid solution-strengthened diffusion zone wherein the diffusing element is oxygen and the diffusion zone has a depth of 5 to 50 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.