论文标题
Al-Co-Cr-Fe-Ni系统中共晶的高熵合金的设计
The design of eutectic high entropy alloys in Al-Co-Cr-Fe-Ni system
论文作者
论文摘要
在目前的工作中，提出了一种简单的方法来预测Al-Co-Cr-Fe-Ni系统中共晶高熵合金（EHEAS）的组成。有人提出，在该系统中的某些共晶合金之间存在共晶线，结果，可以通过混合位于同一共晶线上的合金来获得新的共晶或近乎整流性组成。该方法适用于一系列实验验证的共晶合金，新的共晶或近脑合金是为Al-Co-CR-CR-FE-NI系统设计的。此外，通过研究Al-Co-Cr-Fe-Ni系统中经过验证的共晶合金的组成，提出了组成图，该图显示了共晶合金中成分元素浓度之间的关系。组成图表明，EHEAS源自二元和三元共晶合金。此外，所提出的图可以被视为评估al-CO-CR-FE-NI系统中EHEAS组成的方便方法。
In the present work, a simple approach is proposed for predicting the compositions of eutectic high entropy alloys (EHEAs) in Al-Co-Cr-Fe-Ni system. It is proposed that eutectic lines exist between certain eutectic alloys in this system and, as a result, new eutectic or near-eutectic compositions can be obtained by mixing the alloys which are located on the same eutectic line. The approach is applied for a series of experimentally verified eutectic alloys and new eutectic or near-eutectic alloys are designed for Al-Co-Cr-Fe-Ni system. Furthermore, by investigating the compositions of verified eutectic alloys in Al-Co-Cr-Fe-Ni system, compositional diagrams are proposed which show the relations between the concentrations of constituent elements in eutectic alloys. The compositional diagrams suggest that EHEAs are derived from binary and ternary eutectic alloys. Moreover, the proposed diagrams can be considered as convenient methods for evaluating the composition of EHEAs in Al-Co-Cr-Fe-Ni system.
