High strength wear resistant aluminium alloys and process
US4434014A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1981 |
| Grant date | Feb 28, 1984 |
| Priority date | — |
| Expiry date | Sep 3, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Aluminium-silicon alloys of the following composition by weight: ______________________________________ Si 12-15% Cu 1.5-5.5%, preferably 1.5-4% Ni 1.0-3.0% Mg 0.1-1.0% preferably 0.4-1.0% Fe 0.1-1.0% preferably 0.1-0.5% Mn 0.1-0.8% Zr 0.01-0.1% Modifier (preferably Sr) 0.001-0.1% preferably 0.01-0.05% Ti 0.01-0.1% Al Remainder, apart from impurities. ______________________________________ Superior properties are obtained by control of growth rate of the solid phase during solidification and the temperature gradient at the solid-liquid interface. The alloys of the invention are suitable for a wide variety of applications, including brake calipers and drums, piston/bore applications in internal combustion engines and a number of other components in engines, compressors and electric motors. A particular application of the alloys of the invention is in aluminium cylinder heads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.