tructural transformation, pressure dependent elasticity behaviors, phonon, and thermodynamic properties of the equiatomic TiZr alloy are investigated by using first-principles density-functional theory. Our calculated lattice parameters and equation of state for $α$ and $ω$ phases as well as the phase transition sequence of $α$$\mathtt{\rightarrow}$$ω$$\mathtt{\rightarrow}$$β$ are consistent well with experiments. Elastic constants of $α$ and $ω$ phases indicate that they are mechanically stable. For cubic $β$ phase, however, it is mechanically unstable at zero pressure and the critical pressure for its mechanical stability is predicted to equal to 2.19 GPa. We find that the moduli, elastic sound velocities, and Debye temperature all increase with pressure for three phases of TiZr alloy. The relatively large $B/G$ values illustrate that the TiZr alloy is rather ductile and its ductility is more predominant than that of element Zr, especially in $β$ phase. Elastic wave velocities and Debye temperature have abrupt increase behaviors upon the $α$$\mathtt{\rightarrow}$$ω$ transition at around 10 GPa and exhibit abrupt decrease feature upon the $ω$$\mathtt{\rightarrow}$$β$ transition at higher pressure. Through Mulliken population analysis, we illustrate that the increase of the \emph{d}-band occupancy will stabilize the cubic $β$ phase. Phonon dispersions for three phases of TiZr alloy are firstly presented and the $β$ phase phonons clearly indicate its dynamically unstable nature under ambient condition. Thermodynamics of Gibbs free energy, entropy, and heat capacity are obtained by quasiharmonic approximation and Debye model.
Jerky elasticity: Avalanches and the martensitic transition in Cu74.08Al23.13Be2.79 shape-memory alloy
通过动态力学分析仪测量观察到记忆合金Cu 74.08 Al 23.13 Be 2.79单晶的急动弹性。急动出现在弹性响应函数的耗散尖峰，并与奥氏体和马氏体相之间的转变过程中雪崩的形成有关。雪崩的统计数据遵循雪崩临界性P（E）与E-E成比例的预测，其中P（E）是发现能量为E的雪崩的概率。这一结果再现，在实验的不确定性，以前的研究结果声发射技术。
Mo-Re-W Alloys for High Temperature Applications: Phase Stability, Elasticity, and Thermal Property Insights via Multi-Cell Monte Carlo and Machine Learning
Thermal and electrical conductivity of a refractory high-entropy alloy after high-pressure torsion: Electron versus phonon contributions
WPI, International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University（九州大学碳中和社会能源研究国际中心）；School of Mechanical Engineering, FEM, University of Campinas, UNICAMP（坎皮纳斯大学机械工程学院）；School of Applied Sciences, University of Campinas, FCA-UNICAMP（坎皮纳斯大学应用科学学院）；Department of Materials, Faculty of Engineering, Kyushu University（九州大学工学分部材料系）
Nanolamellar Hybrid High-Entropy Alloys with Superior Micromechanical Properties
WPI, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University（九州大学 碳中性能源研究国际研究所）；Department of Automotive Science, Graduate School of Integrated Frontier Sciences, Kyushu University（九州大学 前沿融合科学研究生院 汽车科学系）；Department of Materials Science and Engineering, Kumamoto University（熊本大学 材料科学与工程系）；Department of Mechanical Engineering, Kyushu University（九州大学 机械工程系）；Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Groupe de Physique des Matériaux, UMR6634（鲁昂诺曼底大学 鲁昂诺曼底国立应用科学学院 法国国家科学研究中心 材料物理小组）；Interdisciplinary Research Center, Liaoning Academy of Materials（辽宁材料研究院 交叉研究中心）
The influence of the phase and structural state on the low-temperature elastic properties of molybdenum-alloyed non-equiatomic high-entropy alloys of the Fe-Co-Ni-Cr system
Accelerated design of linear-superelastic Ti-Nb nanocomposite alloys with ultralow modulus via high-throughput phase-field simulations and machine learning
Microstructural and Mechanistic Insights into the Tension-Compression Asymmetry of Rapidly Solidified Fe-Cr Alloys: A Phase Field and Strain Gradient Plasticity Study
