Multivariate niobium alloy ingot manufacturing methods, the method by adding aluminum powder metallurgy grade niobium oxide powder, compound, lime powder, alloy elements and rare earth elements, after mixing, heat furnace charging aluminum reduction reaction, separation of metal and slag, metal will restore after using electron beam furnace melting into planar, cylindrical, or other forms of ingot casting, after the match into certain zirconium or other metal, Niobium alloy ingot was prepared by two vacuum electron beam furnace smelting or one vacuum electron beam furnace + one vacuum consumable arc furnace smelting. The invention greatly reduces the production cost of niobium base alloy and has a good development prospect, and the niobium alloy produced by the method of the invention has the characteristics of low cost, short production cycle, high yield and excellent alloy performance.
With the rapid development of military and space technology in the world, the integrated advanced defense system of air defense and air defense has become a major development goal of China in the 21st century. As a symbol of a country's military technical strength, it has huge military and political influence. As an important part of advanced defense system, the kinetic energy killing interceptor and the corresponding missile delivery system also put forward higher requirements for attitude control engine, which not only pursues high temperature performance, long service time, low material density, but also has good welding performance. Niobium metal has become the preferred material in this industry because of its good plasticity and high melting point. Moreover, it can realize solid solution strengthening, precipitation strengthening and dispersion strengthening by adding W, Mo, Ta, V, Cr, Zr, C, Ti, Ni, Hf and other elements to improve the room temperature and high temperature properties of the alloy. In addition, because the metal niobium is the lowest density in refractory metal, the price is cheap, niobium alloy has good welding performance and other advantages, so, niobium alloy has become the best material in the field of course.
