白鹏,张花蕊,李一鸣,孔玢,张虎.氧化钇坩埚对镍三铝基高温合金返回料纯净化熔炼的影响[J].稀有金属材料与工程,2019,48(2):406~410.[Bai Peng,Zhang Huarui,Li Yiming,Kong Bin,Zhang Hu.Effects of Y2O3 Crucible on Purification of Ni3Al-Based Superalloy Scraps[J].Rare Metal Materials and Engineering,2019,48(2):406~410.]
氧化钇坩埚对镍三铝基高温合金返回料纯净化熔炼的影响
投稿时间:2017-08-28  修订日期:2017-11-02
中文关键词:  氧化钇坩埚  高温合金  脱氧  热力学
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)、国家科技支撑计划
中文摘要:
      本文研究了Y2O3坩埚对N3Al基高温合金返回料纯净化熔炼的影响,并对使用Y2O3坩埚和MgO坩埚进行真空感应熔炼的结果进行了对比。结果表明:使用Y2O3坩埚对N3Al基高温合金IC21返回料进行纯净化熔炼有利于降低返回料中的H、N和O含量。和使用MgO坩埚相比分别降低了50%,80%,和80%。最低可以达到0.5 wppm,1 wppm 和2 wppm的数值。当精炼温度高于1550?C或精炼时间超过5分钟时,精炼参数对纯净化熔炼的效果影响很小。
Effects of Y2O3 Crucible on Purification of Ni3Al-Based Superalloy Scraps
英文关键词:Y2O3 crucible  superalloy  deoxidation  thermodynamics
英文摘要:
      The effect of Y2O3 crucible on the purification of Ni3Al-based superalloy IC21 scraps during Vacuum Induction Melting was investigated. Different purification results were compared when using MgO crucible and Y2O3 crucible. The results indicated that Y2O3 crucible was more effective for reducing the content of hydrogen, nitrogen and oxygen. Hydrogen, nitrogen, and oxygen content using Y2O3 were about 50%, 80%, and 80% lower compared with MgO crucible, to 0.5 wppm, 1 wppm and 2 wppm in IC21 scraps, respectively. When melting temperature was above 1550°C or reaction time exceeded 5 minutes, it had limited impact on dehydrogenation and denitrification process when using Y2O3 crucible. Melting for 5 minutes at 1750°C or melting for 30 minutes at 1650°C, the content of oxygen reached the highest level, which was 6 wppm.
作者单位E-mail
白鹏 北京航空航天大学 baipeng_1992@buaa.edu.cn 
张花蕊 北京航空航天大学  
李一鸣 北京航空航天大学  
孔玢 北京航空航天大学  
张虎 北京航空航天大学  
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