Denitrogenation and desulphurization during vacuum induction melting refining Ni-base superalloy

牛建平; 孙晓峰; 杨克努; 郑启; 管恒荣; 胡壮麒

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Denitrogenation and desulphurization during vacuum induction melting refining Ni-base superalloy

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摘要

The denitrogenation and desulphurization behavior during vacuum induction melting (VIM) refining Ni base superalloy using CaO crucible was studied. It has been found that the desulphurization process did not occur by only using CaO crucible. Combining with the results of XRD and composition analysis, the desulphurization mechanism of CaO crucible was proposed. Al addition limits effect on denitrogenation, but it is very important for desulphurization. Ti addition has adverse effect on denitrogenation. The increase of vacuum is a powerful measurement to accelerate the denitrogenation process.

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《中国有色金属学报：英文版》 |2002年第1期|11-15|共5页
作者
牛建平; 孙晓峰; 杨克努; 郑启; 管恒荣; 胡壮麒;
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作者单位

The Institute of Metal Research;

The Chinese Academy of Sciences;

Shenyang 110016;

China;

Department of Materials Engineering;

Shenyang University;

Shenyang 110044;

China;

The Institute of Metal Research;

The Chinese Academy of Sciences;

Shenyang 110016;

China;

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原文格式 PDF
正文语种 chi
中图分类真空感应熔炼;
关键词
镍基超耐热合金; VIM; 真空感应熔化; 氧化钙坩埚; 脱氮; 脱硫;

机译：镍基高温合金;VIM（真空感应熔炼）;CaO坩埚;脱氮;脱硫;

Denitrogenation and desulphurization during vacuum induction melting refining Ni-base superalloy

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