| Ti-Al合金熔体与氧化物陶瓷界面反应的热力学分析(英文) |
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| 引用本文： | 崔仁杰,唐晓霞,高明,张虎,宫声凯.Ti-Al合金熔体与氧化物陶瓷界面反应的热力学分析(英文)[J].中国有色金属学会会刊,2012,22(4):887-894. |
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| 作者姓名： | 崔仁杰 唐晓霞 高明 张虎 宫声凯 |
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| 作者单位： | 北京航空航天大学材料科学与工程学院空天材料与服役教育部重点实验室 |
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| 摘 要： | 研究CaO、MgO、Al2O3和Y2O3与熔融Ti及Ti合金之间的界面反应热力学。根据氧化物在Ti合金熔体中的溶解反应机制建立热力学模型,通过热力学分析预测各氧化物相对于Ti-Al(0≤x(Al)≤0.5)合金的热力学稳定性。根据氧化物坩埚熔炼实验结果来研究氧化物与Ti-xAl合金熔体的界面反应,对熔炼效果进行定量分析,发现随着合金中Al含量的提高和熔体温度的降低,合金中杂质元素含量成比例的减少,这与氧化物稳定性计算结果一致。
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| 关 键 词： | Ti合金 热力学 氧化物陶瓷 界面反应 |
| 收稿时间： | 18 May 2011 |
Thermodynamic analysis of interactions between Ti-Al alloys and oxide ceramics |
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| CUI Ren-jie,TANG Xiao-xia,GAO Ming,ZHANG Hu,GONG Sheng-kai.Thermodynamic analysis of interactions between Ti-Al alloys and oxide ceramics[J].Transactions of Nonferrous Metals Society of China,2012,22(4):887-894. |
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| Authors: | CUI Ren-jie TANG Xiao-xia GAO Ming ZHANG Hu GONG Sheng-kai |
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| Affiliation: | Key Laboratory of Aerospace Materials and Performance(Ministry of Education),School of Materials Science and Engineering,Beihang University,Beijing 100191,China |
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| Abstract: | The thermodynamics of interactions between various oxides(CaO,MgO,Al2O3 and Y2O3) and molten Ti and Ti alloys was investigated.The dissolution mechanism of oxides in molten Ti alloys was provided and the stability of oxides in molten Ti alloys was investigated and predicted by thermodynamic analysis.Interactions between oxides and Ti-Al melts were studied by oxide crucible melting experiments.By quantitative analysis,it is indicated that impurity contents in alloys are proportionally decreased with increasing the Al content in alloys and decreasing the melt temperature,which is in agreement with the results of the predicting thermodynamic stability. |
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| Keywords: | Ti alloys thermodynamics oxide ceramics interaction |
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