| Al-V系二元相图的计算、评估及其活度 |
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| 引用本文： | 史忠兵,马凤仓,王飞,刘平,刘新宽,李伟.Al-V系二元相图的计算、评估及其活度[J].上海理工大学学报,2017,38(4):222-228. |
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| 作者姓名： | 史忠兵 马凤仓 王飞 刘平 刘新宽 李伟 |
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| 作者单位： | 上海理工大学 材料科学与工程学院, 上海 200093;上海材料研究所, 上海 200437;上海材料基因组工程研究院, 上海 200072,上海理工大学 材料科学与工程学院, 上海 200093,上海材料研究所, 上海 200437;上海材料基因组工程研究院, 上海 200072,上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093,上海理工大学 材料科学与工程学院, 上海 200093 |
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| 基金项目： | 上海自然科学基金（17ZR1419600）;上海市科学技术委员会科研计划项目（14DZ2261202） |
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| 摘 要： | 利用最新版本的Pandat热力学计算软件,采用最新的Ti合金数据库和合理的热力学模型,计算出了Al-V系二元相图.研究发现：从相率和相图的特殊点对其进行了详细的热力学评估,最大误差为1.14%,说明计算相图与试验相图吻合较好;在Al-V二元相图的基础上,提取了Al和V在不同物质的成分和温度下的活度;拟合了恒温下其活度的计算公式,其线性相关度R趋近于1;作出了V的活度-成分-温度关系曲线,有效地解决了"试验测活度难"的问题.
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| 关 键 词： | Al-V系 热力学模型 相图 评估 活度 |
| 收稿时间： | 2016/12/20 0:00:00 |
Calculation,Assessment and Activity of the Al-V Binary Phase Diagram |
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| SHI Zhongbing,MA Fengcang,WANG Fei,LIU Ping,LIU Xinkuan and LI Wei.Calculation,Assessment and Activity of the Al-V Binary Phase Diagram[J].Journal of University of Shanghai For Science and Technology,2017,38(4):222-228. |
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| Authors: | SHI Zhongbing MA Fengcang WANG Fei LIU Ping LIU Xinkuan and LI Wei |
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| Institution: | School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;Shanghai Research Institute of Materials, Shanghai 200437, China;Materials Genome Institute of Shanghai, Shanghai 200072, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,Shanghai Research Institute of Materials, Shanghai 200437, China;Materials Genome Institute of Shanghai, Shanghai 200072, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China and School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | Based on the latest version of Pandat thermodynamic calculation software,the Al-V binary phase diagram was calculated by using the latest Ti alloy database and reasonable thermodynamic model.The results showed that a detailed thermodynamic assessment was performed from the specificity of the phase and phase diagrams.Maximum error was 1.14%,which indicated that the calculated phase diagram agreed well with the experimental phase diagram.On the basis of Al-V binary phase diagram,the activity of Al and V in the composition of different substances and temperature was extracted.The formula of its activity was fitted under constant temperature,and the linear correlation degree R was close to 1.The curve of activity-composition-temperature for V was made,which can effectively solve the problem that experimental activity was difficultly measured. |
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| Keywords: | Al-V system thermodynamic model phase diagram assessment activity |
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