Heat-resistant and soluble magnesium alloy, preparation method and use thereof

US11795533B2 · kind B2 · utility

Assignees

• Qilu University of Technology · CN
• ADVANCED MATERIALS INSTITUTE, SHANDONG ACADEMY OF SCIENCES · CN

Inventors

• Jixue Zhou · Jinan, CN
• Yunteng Liu · Jinan, CN
• Dongqing Zhao · Jinan, CN
• Baichang Ma · Jinan, CN
• Meifang Wang · Jinan, CN
• Peiliang LI · Lo Wu, CN
• Cong Liu · Lanzhou, CN
• Shouqiu Tang · Jinan, CN

Key dates

• Filing date: May 13, 2020
• Grant date: Oct 24, 2023
• Expiry date: Feb 13, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C23/06
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A heat-resistant and soluble magnesium alloy, and a preparation method having an elemental composition at the following atomic percentage: Lu 0.10% to 8.00%, Ce 0.001 to 0.05%, Al 0.10% to 0.60%, Ca 0.001% to 0.50%, Cu 0.01% to 1.00%, Ni 0.01% to 1.00%, impurity elements <0.30%, and the rest is Mg, and formed in magnesium alloys are high temperature phase of Lu5Mg24, Mg2Cu, Mg2Ni, Mg12Ce, Al11Ce3 and (Mg, Al)2Ca, and Long Period Stacking Ordered (LPSO) phases as Mg—Lu—Al and Mg—Ce—Al. The magnesium alloy has good mechanical performances at 150° C., and a dissolution rate of 30 to 100 mg·cm−2h−1 in a 3% KCl solution at 93° C.