摘要
研究了真空感应熔炼Ｎｉ基高温合金过程中的脱氮行为．计算了不同真空度及加Ａｌ和Ｔｉ条件下Ｎｉ－６Ｇｒ－５Ｇｏ－２Ｍｏ－６Ｗ合金在１６００℃时氮的溶解度．实验表明在ＣａＯ坩埚精炼过程中加Ａｌ对脱氮有促进作用；加Ｔｉ则对脱氮有明显不利影响．
The denitrogenation behavior during vacuum induction melting (VIM) Ni-base superalloy using CaO crucible was studied, and the dissolubilities of nitrogen under different vacuum levels as well as At and Ti adding amounts at 1600 degreesC were also calculated. The results show that At addition has evident effect to denitrogenation and Ti addition has adverse effect to denitrogenation. The increase of vacuum level is a powerful way to accelerate the rate of denitrogenation.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第9期943-946,共4页
Acta Metallurgica Sinica
关键词
镍基高温合金
真空感应熔炼
坩埚
脱氮
Ni-base superalloy
vacuum induction melting
CaO crucible
denitrogenation
