Effect of lattice distortion on solid solution strengthening of BCC high-entropy alloys
Effect of lattice distortion on solid solution strengthening of BCC high-entropy alloys
复制标题
晶格畸变对BCC高熵合金固溶强化的影响
DOI：
10.1016/j.jmst.2017.07.013
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发表时间：
2017-07
影响因子：
10.9
通讯作者：
Liu Yong
中科院分区：
文献类型：
--
作者：
Wang Zhipeng;Fang Qihong;Li Jia;Liu Bin;Liu Yong
建立了体心立方TiNbTaZrHfx多元高熵合金（HEAs）的力学模型，研究了晶格畸变和Hf含量对合金屈服强度的影响。同时，对高能区中晶格畸变引起的固溶强化机理进行了探讨。引入畸变单胞来表征钛基金属中掺杂其它元素后，由于原子尺寸和剪切模量的不同而引起的晶格畸变效应。结果表明，对于等原子TiNbTaZrHf HEA，考虑最小电阻路径的合金化屈服强度计算值与实验结果吻合较好。此外，据预测，合金化屈服强度是最大值的情况下，相同的晶粒尺寸为Hf原子分数为0.122。该模型的建立为今后研究其它体心立方结构热交换器的屈服强度和合金化设计提供了理论依据。
An analytical model is established to study the influence of lattice distortion and fraction of Hf on the yield strength of the BCC TiNbTaZrHfxmulti-component high entropy alloys (HEAs). Meanwhile, the mechanism of solid solution strengthening caused by lattice distortion is also discussed in the HEA. The distorted unit cell is introduced to indicate the lattice distortion effects induced by the differences of the atomic size and shear modulus by doping other elements in Ti-based metal. The results show that the calculated values of the alloying yield strength considering the path of least resistance are obtained with regard to various grain sizes for the equiatomic TiNbTaZrHf HEA, which is well in line with the experimental results. Furthermore, it is predicted that the alloying yield strength is the largest value in the case of the same grain size for the Hf atomic fraction of 0.122. The meaningful modeling could provide a theoretical method to investigate the yield strength and alloying design of other BCC HEAs in the future.
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影响因子：
10.9
作者：
Yuan Yu;Jun Wang;Jinshan Li;Jun Yang;H. Kou;Wei-min Liu
通讯作者：
Yuan Yu;Jun Wang;Jinshan Li;Jun Yang;H. Kou;Wei-min Liu
DOI：
10.1016/j.msea.2008.04.018
发表时间：
2008-09
影响因子：
6.4
作者：
Liqiang Wang;W. Lu;J. Qin;Fan Zhang;Di Zhang
通讯作者：
Liqiang Wang;W. Lu;J. Qin;Fan Zhang;Di Zhang
DOI：
10.1002/maco.201307502
发表时间：
2015-04
期刊：
Materials and Corrosion
影响因子：
--
作者：
D. Mareci;G. Bolat;C. Munteanu;N. Ghiban;A. Cailean
通讯作者：
D. Mareci;G. Bolat;C. Munteanu;N. Ghiban;A. Cailean
DOI：
10.1016/b978-1-4832-8412-5.50162-4
发表时间：
1979
期刊：
--
影响因子：
--
作者：
L. Gypen;A. Deruyterre
通讯作者：
L. Gypen;A. Deruyterre
影响因子：
9.4
作者：
Chuang, Ming-Hao;Tsai, Ming-Hung;Yeh, Jien-Wei
通讯作者：
Yeh, Jien-Wei