The value of long-range interactions parameter for some alloys

合金中热平衡空位浓度

Thermal Equilibrium Vacancy Concentration in an Alloy with Chemical Short-Range Order

本文推导出适用于原子计算的多主元合金热平衡空位浓度精确表达式，并应用于CrCoNi合金，预测化学短程有序的形成时间尺度，与实验结果一致。

高熵合金中的位错动力学与形状：应力关联、长程相互作用和各向异性的影响

Dislocation Dynamics and Shape in High Entropy Alloys: the Influence of Stress Correlations, Long-Range Interactions and Anisotropy

本文研究高熵合金中钉扎应力关联、各向异性及位错长程相互作用对位错传播、脱钉转变和位错形状的影响。

从第一性原理研究二元合金中化学短程有序的渗透图

Percolation Diagrams Derived from First-Principles Investigation of Chemical Short-Range Order in Binary Alloys

本研究通过第一性原理计算，构建了二元合金中化学短程有序的渗透图，揭示了SRO对渗透阈值的影响，为抗腐蚀合金设计提供理论依据。

Multihyperuniform Long-Range Order in Medium-Entropy Alloys

We provide strong numerical evidence for a hidden multihyperuniform long-range order (MHLRO) in SiGeSn medium-entropy alloys (MEAs), in which the normalized infinite-wavelength composition fluctuations for all three atomic species are completely suppressed as in a perfect crystalline state. We show this MHLRO naturally leads to the emergence of short-range order (SRO) recently discovered in MEAs, which results in stable lower-energy states compared to alloy models with random or special quasi-random structures (SQSs) possessing no atomic SROs. The MHLRO MEAs approximately realize the Vegard's …

Non-mean-field theories of short range order and diffuse scattering anomalies in disordered alloys

Local, or short-range, order in disordered alloys is an important and exciting phenomenon which is quantified in electron, X-ray and neutron scattering experiments. It is discussed in many excellent reviews and books, as well as in the multitude of original research papers. This relatively short review of the subject does not attempt to discuss all aspects of the problem of local correlations in alloys. In particular, we will not touch such issues as multiatom (cluster) interactions, static displacements and vibrations of alloy atoms, partially ordered, multicomponent or amorphous alloys. As a…

Short range order in a steady state of irradiated Cu-Pd alloys: Comparison with fluctuations at thermal equilibrium

The equilibrium short-range order (SRO) in Cu-Pd alloys is studied theoretically. The evolution of the Fermi surface-related splitting of the (110) diffuse intensity peak with changing temperature is examined. The results are compared with experimental observations for electron-irradiated samples in a steady state, for which the temperature dependence of the splitting was previously found in the composition range from 20 to 28 at.% Pd. The equilibrium state is studied by analysing available experimental and theoretical results and using a recently proposed alpha-expansion theory of SRO which i…