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研究了在真空感应炉中使用 Ca O坩埚熔炼镍基高温合金的脱氧效果 ,分析了加入 0 .0 2 % C、0 .5 % Al对脱氧的影响。结果表明 :采用 Ca O坩埚 ,选择合适的熔炼工艺及 C、Al加入量 ,可使氧的含量降低到小于 0 .0 0 0 6%
The effect of deoxidation on the nickel base superalloy using CaO crucible in a vacuum induction furnace was studied. The effect of adding 0.2% C and 0.5% Al on deoxidation was analyzed. The results show that CaO crucible can be used to reduce the oxygen content to less than 0.0006% by choosing appropriate smelting process and addition of C and Al.