Dispersion strengthened extruded metal products substantially free of texture
US4599214A · kind A · utility
11Cited by
8References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 1983 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | Aug 17, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C32/0015
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are extruded dispersion strengthened metallic materials which are substantially free of texture as well as a method for producing such materials. The method comprises extruding a billet of dispersion strengthened metallic powder material comprised of one or more metals and one or more refractory compounds said powder material having a mean grain size less than about 5 microns and whose grain size is substantially stable at the extrusion conditions, through a die having an internal contour such that the material is subjected to a natural strain rate which is substantially constant as it pass through the die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.