PREPARATION OF Ti-Al-V ALLOYS BY ALUVUNOTHERMIC REACTION

摘要

Reduction reaction can happen among AL V_2O_5 and TiO_2 powders. Al can deoxidize metal V and Ti from the metal oxides. The electric igniter can be used to trigger the reduction The reaction between Al and V_2O_5 is very intense and release large amounts of heat, but the heat which is needed to initiate the reaction between Al and TiO_2 is not enough. These two reactions have been initiated first and V-Al and Ti-Al alloys can be obtained with a higher metal recovery percent Through adjusting the ratio of Al, V_2O_5 and TiO_2 powders, the system which combines these two reactions can ensured enough heat to react KClO_3 is added to the system, as the ignition agent in order to make the reaction much complete. Finally, Ti-Al-V alloys can be obtained and need remelt to adjust the constituents.