| Thermodynamics of Modifying Effect of Rare Earth Oxide on Inclusions in Hardfacing Metal of Medium—High Carbon Steel |
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| 引用本文： | 杨庆祥,赵研辉,李艳丽,姚枚.Thermodynamics of Modifying Effect of Rare Earth Oxide on Inclusions in Hardfacing Metal of Medium—High Carbon Steel[J].中国稀土学报(英文版),2002,20(4):291-294. |
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| 作者姓名： | 杨庆祥 赵研辉 李艳丽 姚枚 |
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| 作者单位： | College of Materials Science and Engineering，Yanshan University，Qinhuangdao 066004，China |
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| 基金项目： | ProjectsupportedbytheNationalKeyLaboratoryofModernWeldingTechnology |
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| 摘 要： | The modifying effect of rare earth(RE)oxide on inclusions in hardfacing metals of medium-high carbon steel was investigated by means of thermodynamics,The thermodynamic analsys for inclusion formation shows that RE oxide can be reduced to RE element by carbon,then the RE element can react with oxygen and sulfur to form the RE oxide,RE sulfide and RE oxide-sulfide in hardfacing molten pool.The deoxidization and the desulphurization can be carried otu and the liquid metal can be purified.In addition,RE oxide can also react with sulfur to form RE oxide-sulfide dirdctly.Therefore,the harmful effect of sulfur can be decreased.
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| 关 键 词： | 中高碳钢 钎焊 稀土氧化物 热力学 难熔金属 |
Thermodynamics of Modifying Effect of Rare Earth Oxide on Inclusions in Hardfaci ng Metal of Medium-High Carbon Steel |
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| Yang Qingxiang,Zhao Yanhui,Li Yanli,Yao Mei.Thermodynamics of Modifying Effect of Rare Earth Oxide on Inclusions in Hardfaci ng Metal of Medium-High Carbon Steel[J].Journal of Rare Earths,2002,20(4):291-294. |
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| Authors: | Yang Qingxiang Zhao Yanhui Li Yanli Yao Mei |
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| Abstract: | The modifying effect of rare earth (RE) oxide on inclusions in hardfacing metals of medium-high carbon steel was investigated by means of thermodynamics. The thermodynamic analysis for inclusion formation shows that RE oxide can be reduced to RE element by carbon, then the RE element can react with oxygen and sulfur to form the RE oxide, RE sulfide and RE oxide-sulfide in hardfacing molten pool. The deoxidization and the desulphurization can be carried out and the liquid metal can be purified. In addition, RE oxide can also react with sulfur to form RE oxide-sulfide directly. Therefore, the harmful effect of sulfur can be decreased. |
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| Keywords: | rare earths oxide inclusion hardfacing metal thermodynamics |
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