| Ti-V合金hcp结构弹性性质的第一原理研究 |
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| 引用本文： | 孙士阳,徐平平,候永红,李戈扬.Ti-V合金hcp结构弹性性质的第一原理研究[J].稀有金属材料与工程,2018,47(1):108-112. |
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| 作者姓名： | 孙士阳 徐平平 候永红 李戈扬 |
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| 作者单位： | 内蒙古科技大学,内蒙古科技大学,北奔重型汽车集团有限公司,上海交通大学 |
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| 基金项目： | 内蒙古自然科学基金资助(项目号2015MS0554) |
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| 摘 要： | 为研究V元素对Ti合金弹性模量的影响,采用平面波展开的第一原理赝势法,对固溶状态下hcp结构的Ti-V合金的结构、弹性模量进行研究,结果表明V含量小于5.6 at%时合金呈稳定的hcp结构,且随V含量的增加,合金的体弹模量、剪切模量和杨氏模量单调减小,泊松比单调增大。
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| 关 键 词： | TiV合金 弹性性质 第一原理 各向异性 |
| 收稿时间： | 2015/10/15 0:00:00 |
| 修稿时间： | 2016/8/15 0:00:00 |
First-principles Study on the Elastic Properties of hcp phase Ti-V Alloy |
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| Sun ShiYang,Xu PingPing,He YongHong and Li Geyang.First-principles Study on the Elastic Properties of hcp phase Ti-V Alloy[J].Rare Metal Materials and Engineering,2018,47(1):108-112. |
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| Authors: | Sun ShiYang Xu PingPing He YongHong and Li Geyang |
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| Affiliation: | Inner Mongolia University of Science Technology,Inner Mongolia University of Science Technology,Beiben trucks group Company Limited,Shanghai Jiao Tong University |
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| Abstract: | In order to study the effect of V element on Ti alloy, the structure and the elastic modulus of Ti-V alloy in hcp phase was calculated by the first principles pseudopotentials and the plane wave energy band method. The results show that the content of V less 5.6 at. %, theTi-V alloy have steady HCP structure, and with the increasing of the content of V, the body elastic modulus, shear modulus and young"s modulus of Ti-V alloy decrease monotonously, while the poisson ratio increase. |
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| Keywords: | TiV alloy the elastic property the first-principles anisotropies |
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