The intermetallic compound formed by niobium and aluminum has the characteristics of excellent high temperature strength and good chemical stability, and is a potential high temperature structural material. At the same time, Nb-Al can also be used as a superconducting material under high current and high magnetic field. Aluminum-niobium alloys have the characteristics of high melting point and low density. High-temperature components in aviation, naval and industrial gas turbines, spacecraft and rocket engines, nuclear reactors.
Niobium microalloy is better than aluminum alloy. Aluminum alloy is a kind of metal material that uses aluminum as the main component and doping a small amount of other metals to improve strength and hardness, and has the advantages of light weight, high strength, good thermal conductivity, easy processing and forming. It is widely used in automobile, aircraft, electronics and other fields, such as automobile body, aircraft fuselage, aviation engine and so on. Aluminum alloy can improve the service life and safety of the product, but also has the environmental benefits of reducing weight, energy saving and material saving. However, the processing of niobium microalloy is difficult, and it is difficult to milling, drawing, cold bending and other fine processing processes. The increase in processing difficulty has also led to an increase in product costs. Although niobium microalloy has a very high strength and hardness, but because of the characteristics of crystal structure, so the malleability is poor, the common deformation mode is crack type, need to take special hot processing technology and conditions to ensure its forming quality and malleability. Therefore, niobium microalloy and aluminum alloy, aluminum alloy is better.
