In response to the performance requirements for material shock absorption and energy absorption in the fields of aerospace and precision instruments, Liu Zengqian, Zhang Zhefeng, Li Shujun, Yang Rui, etc. of the Institute of Metal Research, Chinese Academy of Sciences cooperated with the University of California, Berkeley and the Chinese Academy of Engineering Physics to learn from The concept of three-dimensional interpenetrating microstructure of natural biological materials is to melt infiltrate magnesium into the nickel-titanium alloy framework manufactured by additive, and construct a "magnesium-nickel titanium bionic composite material" with light weight, high strength, high damping and high energy absorption. Related research results were recently published in the "Science" sub-Journal "Science Progress".
The new biomimetic composite material achieves a good combination of strength, damping and energy absorption efficiency of magnesium alloys, and its comprehensive performance is better than currently known engineering materials. It is expected to become a new type of damping shock absorption required by precision instruments, aerospace and other fields. material.