Production of fine grain niobium products by micro-alloying and ingot metallurgy

摘要

The present invention relates to a kind of manufacture niobium alloys, comprising: one) melts niobium, form me Addition 0. in step b)1 to 60 metal is selected from yttrium, aluminium, hafnium, titanium, zirconium, thorium, lanthanum and cerium, based in the niobium me Step c) is cooling by melt, to form alloy cast ingot; Step d) applies thermomechanical rinsing step to alloy cast ingot, forms forging product.