中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 31 No. 11 November 2021 |
（1. Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, Harbin Engineering University, Harbin 150001, China;
2. College of Science, Heihe University, Heihe 164300, China;
3. Moscow Aviation Institute, National Research University, Moscow 125993, Russia）
Abstract:It has been known that the lack of excellent corrosion resistance is the key problem restricting the wide application of Mg-Li alloys. Based on a quantity of literature about corrosion behavior of Mg-Li alloys, this review elaborates the factors affecting the corrosion behavior of Mg-Li alloys and the processing methods for improving corrosion resistance. The corrosion characteristics of Mg-Li alloys are described firstly. Then, it is explained that the grain size, orientation, second phase, and surface film strongly influence corrosion performance, which can be tailored by alloying, plastic deformation, and heat treatment. Further in-depth discussion about the corrosion mechanisms for Mg-Li alloys was also presented. Finally, important points of improving corrosion resistance are suggested.
Key words: Mg-Li alloy; corrosion behavior; microstructure; surface film; alloying; plastic deformation; heat treatment
