High-strength and high-plasticity casting high-entropy alloy (HEA) and preparation method thereof

US11898229B2 · kind B2 · utility

Assignee

• SHANGHAI INSTITUTE OF TECHNOLOGY · CN

Inventors

• Zemin Wang · Kunming, CN
• Jiajun Li · Arlington, US
• Yu Dong · Shanghai, CN
• Min Liu · Guiyang, CN
• Linghuan Pang · Shanghai, CN
• Bin Fu · Chaoyang, CN
• Zhanyong Wang · Shanghai, CN

Key dates

• Filing date: Jul 11, 2022
• Grant date: Feb 13, 2024
• Expiry date: Jul 11, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C19/058
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present disclosure provides a high-strength and high-plasticity casting high-entropy alloy (HEA), having a general formula of AlaCobCrcTidFeeNifCug, where 6.0<a≤8.0, 18.0<b≤23.0, 7.5≤c<12.5, 2.0<d≤8.5, 15.5<e≤20.0, 28.0<f≤37.0, 0.2<g≤10.0, and a+b+c+d+e+f+g=100. The casting HEA can be prepared in one step and has excellent mechanical properties. The various metal raw materials are environmental-friendly and suitable for large-scale industrial production.