Denitrogenation during VIM refining Ni-base superalloy

被引：0
作者：
Niu, JP [1 ]
Yang, KN
Jin, T
Sun, XF
Guan, HR
Hu, ZQ
机构：
[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
[2] Shenyang Univ, Dept Mat Engn, Shenyang 110044, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2001年 / 37卷 / 09期
关键词：
Ni-base superalloy; vacuum induction melting; CaO crucible; denitrogenation;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
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.
引用
收藏
页码：943 / 946
页数：4
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