Grain refiner for magnesium and magnesium alloys and method for producing the same
US9937554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2011 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Apr 22, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C23/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention pertains to the field of metal alloy, and relates a grain refiner for magnesium and magnesium alloys, which is an aluminum-zirconium-carbon (Al—Zr—C) intermediate alloy, having a chemical composition of: 0.01%˜10% Zr, 0.01%˜0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.