氧化钇坩埚对Ni_3Al基高温合金返回料纯净化熔炼的影响（英文）
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摘要
研究了Y_2O_3坩埚对Ni_3Al基高温合金返回料纯净化熔炼的影响,并对使用Y_2O_3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Y_2O_3坩埚对N_3Al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、1和2μg/g的数值。当精炼温度高于1550℃或精炼时间超过5min时,精炼参数对纯净化熔炼的效果影响很小。
The effect of Y_2O_3 crucible on the purification of Ni_3Al-based superalloy IC21 scraps during vacuum induction melting was investigated. Different purification results were compared between using MgO crucible and Y_2O_3 crucible. The results indicate that Y_2O_3 crucible is more effective in reducing the content of hydrogen, nitrogen and oxygen. Contents hydrogen, nitrogen, and oxygen using Y_2O_3 crucible are about 50%, 80%, and 80% lower than that using MgO crucible, to 0.5, 1 and 2 μ g/g in IC 21 scraps, respectively. When the melting temperature is above 1550 °C or the reaction time exceeds 5 min, these two parameters have a limited impact on the dehydrogenation and denitrification process when using Y_2O_3 crucible. When melting at 1750 °C for 5 min or melting at 1650 °C for 30 min, the content of oxygen reaches the highest level of 6 μ g/g.
The effect of Y_2O_3 crucible on the purification of Ni_3Al-based superalloy IC21 scraps during vacuum induction melting was investigated. Different purification results were compared between using MgO crucible and Y_2O_3 crucible. The results indicate that Y_2O_3 crucible is more effective in reducing the content of hydrogen, nitrogen and oxygen. Contents hydrogen, nitrogen, and oxygen using Y_2O_3 crucible are about 50%, 80%, and 80% lower than that using MgO crucible, to 0.5, 1 and 2 μ g/g in IC 21 scraps, respectively. When the melting temperature is above 1550 °C or the reaction time exceeds 5 min, these two parameters have a limited impact on the dehydrogenation and denitrification process when using Y_2O_3 crucible. When melting at 1750 °C for 5 min or melting at 1650 °C for 30 min, the content of oxygen reaches the highest level of 6 μ g/g.
引文
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3 Zhang Haixia,Li Shusuo,Gong Shengkai et al.Material Research Innovations[J],2015,19(S4):S98
4 Xu Xiaojing,Wu Qiong,Gong Shengkai et al.Materials Science Forum[J],2013,748(s1-2):582
5 Li Hui,Li Fuli,Li Shusuo et al.Materials Science Forum[J],2013,748:659
6 Huang Xuebing,Zhang Yun,Hu Zhuangqi.Metallurgical&Materials Transactions A[J],1999,30(7):1755
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9 Niu Jianpin,Sun Xiaofeng,Yang Kenu et al.Transactions of Nonferrous Metals Society of China[J],2002,18(1):11
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15 Zhang Huarui,Tang Xiaoxia,Zhou Chungen et al.Journal of the European Ceramic Society[J],2013,33(5):925
16 Zhang Huarui,Tang Xiaoxia,Zhou Lei et al.Journal of Materials Science[J],2012,47(17):6451
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23 Ellefson B S,Taylor N W.Journal of the American Ceramic Society[J],2010,21(6):193
24 Ran Chao,Zhang Huarui,Zhang Hu et al.Acta Metallurgica Sinica[J],2017(5):1
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