Guangyuan Tian (1), Junsheng Wang (1) (2), Shuo Wang (1), Chengpeng Xue (1), Xinghai Yang (1), Hui Su (1)
Materialstoday Communications. Volume 35, 105623. (June 2023). DOI: https://doi.org/10.1016/j.mtcomm.2023.105623

Keywords

Mg-Li alloy, modulus, strength, hardness, corrosion, heat treatment

Abstract

In this paper, a new Mg-Li alloy with exceptional Young’s modulus, great specific strength, and outstanding corrosion-resistance has been successfully developed, exceeding any reported values of elastic modulus of currently available for Mg alloys. The newly invented alloy reaches an elastic modulus of 60.83 GPa after heat treatment and a corrosion rate of 0.989 mm per year without any surface treatment. X-ray computed tomography and nanoindentation have proven the 3D distribution of hard secondary phases (AlLi and Al-X) with average equivalent diameters of 4.1 µm and 5.1 µm influencing modulus, hardness, and corrosion rate.

How Our Software Was Used

Images were processed with Dragonfly’s ring artifact removal algorithm and filtered to remove noise before segmentation using a machine learning algorithm to obtain the secondary phases.

Author Affiliation

(1) School of Materials Science and Engineering, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Haidian District, Beijing 100081, China
(2) Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, No. 5 South Zhongguancun Street, Haidian District, Beijing 100081, China