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鑄造高溫合金K417G深度脫氧脫硫的研究
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作者單位:

1.中國科學(xué)院大學(xué)&中國科學(xué)院金屬研究所;2.中國科學(xué)院金屬研究所;3.江蘇飛躍機泵集團有限公司

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中圖分類號:

TF801.3

基金項目:

國家自然科學(xué)基金資助(項目號51671189, 11332010)


Deep Deoxidation and Desulfurization of Cast Superalloy K417G
Author:
Affiliation:

1.Chinese Academy of Sciences University&Chinese Academy of Sciences;2.Jiangsu Feiyue Pump Group Co,Ltd

Fund Project:

National Natural Science Foundation of China(project number 51671189, 11332010)

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    摘要:

    本文采用真空感應(yīng)熔煉的方法研究了金屬鈣和氧化鈣坩堝對鑄造高溫合金K417G深度脫氧和脫硫的影響。結(jié)果表明,Ca能夠達到深度脫氧脫硫的效果,可將氧含量由0.0013%降低到0.0006%,硫含量由0.0007%降低到0.0002%,并且合金中實測的w[Ca]-w[S]平衡關(guān)系與熱力學(xué)計算結(jié)果基本一致;此外,CaO坩堝的脫氧脫硫效果明顯,氧含量可降至0.0006%,硫含量可降至小于0.0002%,硫含量的降低與氧化鈣坩堝內(nèi)壁形成了mCaO.nAl2O3渣有關(guān),從而實現(xiàn)深度脫硫。

    Abstract:

    The effects of metal calcium and CaO crucible on deep deoxidation and desulfurization of cast superalloy K417G were studied by vacuum induction melting.Results showed that Ca can achieve the effect of deep deoxidation and desulfurization, the oxygen content decreased from 0.0013% to 0.0006%, the sulfur content decreased from 0.0007% to 0.0002%.The equilibrium relationship between measured w [Ca] -w [S] in the alloy is basically the same as that of the thermodynamic calculation.In addition, the effect of deoxidation and desulfurization of CaO crucible is obvious, oxygen content can be reduced to 0.0006%, sulfur content can be reduced to less than 0.0002%, the reduction of sulfur content is related to the formation of mCaO.nAl2O3slag in the inner wall of CaO crucible, thus realizing deep desulfurization.

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王慢慢,楊彥紅,王道紅,李志海,嚴紅彬,崔傳勇.鑄造高溫合金K417G深度脫氧脫硫的研究[J].稀有金屬材料與工程,2018,47(12):3730~3734.[ManMan Wang, YanHong Yang, DaoHong Wang, ZhiHai Li, HongBin Yan, ChuanYong Cui. Deep Deoxidation and Desulfurization of Cast Superalloy K417G[J]. Rare Metal Materials and Engineering,2018,47(12):3730~3734.]
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  • 收稿日期:2017-04-17
  • 最后修改日期:2017-05-12
  • 錄用日期:2017-06-23
  • 在線發(fā)布日期: 2019-01-04
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