1 GPA high-strength high-modulus aluminum-based light medium-entropy alloy and preparation method thereof
US11359265B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jan 28, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/03
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A 1 GPa high-strength high-modulus aluminum-based light medium-entropy alloy and a preparation method thereof. An atomic expression of the designed medium-entropy alloy is AlxLiyMgzZnuCuv, subscripts representing the molar percentage of each corresponding alloy element, where x+y+z+u+v=100, x is 79.5-80.5, y is 1.5-2.5, z is 1.5-2.5, u is 13.5-14.5, and v is 1.5-2.5. The phase structure of the involved alloy is mainly based on a face-centered cubic (FCC) solid solution. The present invention obtains high performance aluminum alloy ingots through vacuum induction smelting and direct casting, and features low energy consumption, decreased cost, and simple operation in the preparation process, which cater to the high requirements on cost, strength and plasticity of light alloys applied in the high-end manufacturing industries such as aerospace and automobile electronics nowadays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.