Physica B: Condensed Matter ( IF 2.8 ) Pub Date : 2021-09-13 , DOI: 10.1016/j.physb.2021.413416 Yogesh Prabhu 1 , Ajeet K. Srivastav 1 , D.V. Gunderov 2, 3 , Jatin Bhatt 1
In the present investigation, we propose a theoretical approach to design the Zr-rich glass forming composition in Ni-free Zr-Cu-Al-Fe quaternary system under the thermodynamic framework. In this work, quaternary composition is designed by optimising chemical interaction and topological features among the constituent elements to determine enthalpy of chemical mixing and atomic size mismatch entropy in a statistical framework of configurational entropy . Further, the effect of elemental Al and Fe addition in the Zr-Cu system on the glass forming ability (GFA) is analysed from thermodynamic viewpoint. Also, an attempt is made to understand the effect of Dy addition on thermodynamics and GFA of Zr-Cu-Al-Fe system. Subsequently, Zr62Cu22Al10Fe5Dy1 bulk metallic glass was synthesized for further investigation.
中文翻译:
预测 Zr-Cu-Fe-Al 系统中块状金属玻璃形成成分的热力学模型并了解 Dy 添加的作用
在本研究中,我们提出了一种在热力学框架下设计无 Ni Zr-Cu-Al-Fe 四元体系中富含 Zr 的玻璃形成成分的理论方法。在这项工作中,通过优化组成元素之间的化学相互作用和拓扑特征来确定化学混合焓,设计了四元组成。 和原子大小失配熵 在配置熵的统计框架中 . 此外,从热力学的角度分析了Zr-Cu体系中元素Al和Fe添加对玻璃形成能力(GFA)的影响。此外,还试图了解 Dy 添加对 Zr-Cu-Al-Fe 系统的热力学和 GFA 的影响。随后,合成了Zr 62 Cu 22 Al 10 Fe 5 Dy 1块状金属玻璃用于进一步研究。