| Ti-Al系粉末机械合金化的热力学分析 |
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| 引用本文： | 陶文宏,公衍生,岳云龙.Ti-Al系粉末机械合金化的热力学分析[J].济南大学学报(自然科学版),2003,17(2):104-106. |
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| 作者姓名： | 陶文宏 公衍生 岳云龙 |
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| 作者单位： | 济南大学材料科学与工程学院,山东,济南,250022 |
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| 摘 要： | 参考Miedema半经验理论 ,建立了Ti -Al系机械合金化 (MA)过程的热力学模型 ,计算了合金呈有序金属间化合物、无序固溶体和非晶态的形成自由能。对Ti50 Al50 不同球磨时间MA粉末的X射线衍射 (XRD)结果进行了分析 ,验证了该热力学模型的正确性
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| 关 键 词： | 机械合金化 热力学 Miedema理论 Ti-Al系 |
| 文章编号： | 1671-3559(2003)02-0104-03 |
| 修稿时间： | 2003年1月20日 |
Thermodynamical Analysis of Mechanical Alloyed Ti-Al |
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| Tao Wenhong,Gong Yansheng,Yue Yunlong.Thermodynamical Analysis of Mechanical Alloyed Ti-Al[J].Journal of Jinan University(Science & Technology),2003,17(2):104-106. |
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| Authors: | Tao Wenhong Gong Yansheng Yue Yunlong |
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| Abstract: | A thermodynamic model of MA of Ti-Al system was developed based on Miedema Semi-experimental theory to explain the phases transformation of Ti-Al system during milling.According to it,the free energies of the ordered TiAl intermetallics,disordered fcc solid solution and amorphous alloy were calculated.From XRD analysis of Ti 50 Al 50 powders prepared by mechanical alloying(MA) in a planetary ball milling,it is found that the caculated result is in accordance with the experiments. |
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| Keywords: | mechanical alloying thermadynamics miedema model Ti Al system |
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