| 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].有色金属材料与工程,2017,38(4):222-228. |
| Al-V系二元相图的计算、评估及其活度 |
| Calculation,Assessment and Activity of the Al-V Binary Phase Diagram |
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| DOI：10.13258/j.cnki.nmme.2017.04.007 |
| 中文关键词: Al-V系 热力学模型 相图 评估 活度 |
| 英文关键词:Al-V system thermodynamic model phase diagram assessment activity |
| 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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| 摘要点击次数: 3271 |
| 全文下载次数: 2007 |
| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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