Method of selection of alloy compositions for bulk metallic glasses
US6623566B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2001 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Aug 22, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/15341
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for selecting alloying elements for complex, multi-component amorphous metal alloys is provided in which the solvent element is the largest atom with a concentration of 40-80 at %, the second most concentrated element has a radius of 65-83 % the radius of the solvent atom and a concentration of 10-40 at % in the alloy, with other elements selected at lower concentrations. For ternary alloys specified by this invention, the third element must have an atomic radius within 70-92 % of the solvent atom radius. In the preferred embodiment, alloys with four or more elements are specified, where the third elements must have an atomic radius within 70-80 %, the fourth element must have an atomic radius within 80-92 % of the solvent atom radius, and all other solute elements must have atomic radii within 70-92 % of the solvent atom radius. The concentrations of elements that have radii that differ by less than 1 % from one another are added together and treated as a single alloy addition for the purpose of this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.