Deoxidation of titanium and similar metals using a deoxidant in a molten metal carrier
US4923531A · kind A · utility
50Cited by
7References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1988 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Sep 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for deoxidizing refractory metals such as titanium which contain less than about one percent oxygen. The process described includes heating a liquid metal deoxidant contained in a liquid metal carrier to treat the oxidized metal. After removing the carrier and cooling, the metal is leached to result in a treated metal with lower residual oxygen. In a preferred embodiment, titanium alloy powders are deoxidized with calcium in a sodium carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.