Superplastic aluminum products and alloys
US4874440A · kind A · utility
42Cited by
3References
66Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1987 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Aug 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S420/902
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Superplastic forming of aluminum work stock is improved by including therein about 0.05% to about 10% or 15% scandium. In preferred practices, soluble elements such as magnesium are also included in the aluminum alloy. One or more of the elements from the group of scandium, yttrium, gadolinium, holminum, dysprosium, erbium, ytterbium, lutetium, and terbium, may be included in addition to or in lieu of scandium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.