Niobium zirconium alloy refers to an alloy composed of adding zirconium to metal niobium. The main niobium zirconium alloy is Nb-1Zr alloy. Adding zirconium to niobium can improve the strength of the alloy without affecting its plasticity and workability. Zirconium can also improve the oxidation resistance and alkali metal corrosion resistance of the alloy. Nb-1Zr alloy is the most widely used niobium alloy, which is a low strength niobium alloy with good processing and welding performance. It is mainly used in aerospace, atomic energy reactors, new electric light sources, sodium lamps, and other applications.