High-toughness heat-resistant aluminum alloy armature material and preparation method thereof

US12123077B2 · kind B2 · utility

Assignee

• Shanghai Jiao Tong University · CN

Inventors

• Haiyan GAO · Shanghai, CN
• Haiyang Lv · Shanghai, CN
• Peng Peng · Gukeng, TW
• Yufei Wang · Beijing, CN
• Mengmeng WANG · Hefei, CN
• Yun Wu · Wuxi, CN
• Chi Zhang · Kunshan, CN
• Jun Wang · Longchuan, CN
• Baode Sun · Shanghai, CN

Key dates

• Filing date: Sep 15, 2023
• Grant date: Oct 22, 2024
• Expiry date: Sep 15, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22F2998/10
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for preparing high-toughness heat-resistant aluminum alloy armature material, comprises: heating and melting an aluminum ingot into an aluminum liquid; adding the following elements to the aluminum solution in mass percent: Ce 6-12%, Y 5-9.5%, Zr 0.5-3%, Mg 0.1-2.5%, X 0.15-2.5%, Fe 0.15-0.25%, Mn 0.05-0.15%, and Si 0.1-0.5%; forming an alloy solution and casting same into an alloy ingot; processing the alloy ingot into spherical alloy powder; subjecting the spherical alloy powder to selective laser melting and solidification forming to produce nano-scale Al11Ce3, Al3(Y, Zr), and/or Al3X intermetallic compounds distributed in a net-like skeleton structure in an aluminum matrix. The material of the present disclosure has low density, high-temperature resistance, high energy absorption rate and excellent electrical conductivity, and excellent mechanical properties at room temperature and high temperature.