Experimental Study on Preparation of Nb-Al Master Alloy by Thermit Reduction of Nb_2O_5 AITranslate

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Chinese Library Classification Number:TG146.416[金属学及工艺—金属材料]

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Study was made of Nb-Al master alloy preparation by thermit reduction of Nb_2O_5 outside the furnace,and Al metal particle size was determined.It is concluded that Nb-Al master alloy preparation by thermit reduction of Nb_2O_5 is feasible.Meanwhile,analysis was made of Al loss during preparation,and phase composition,metallographical microstructure and Nb segregation of the reaction product.The results show that prepared with 3mm particle size of Al metal as the thermite,the Nb-Al master alloy has higher purity and more uniform Nb distribution.