High-Temperature Mechanical and Dynamical Properties of γ -(U,Zr) Alloys

• Published in: Materials Vol. 16; no. 7; p. 2623
• Main Authors: Ma, Jiang-Jiang, Han, Xue-Fen, Cai, Xiao-Xiao, Qiu, Ruizhi, Eriksson, Olle, Zhang, Ping, Wang, Bao-Tian
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 26.03.2023; MDPI
• Subjects: Alloying; Alloys; Atoms & subatomic particles; Crystal structure; Debye temperature; Diamond pyramid hardness; dynamical structural factor; Elastic properties; gamma-(U; Heat conductivity; Heat resistant alloys; High temperature; Lattice parameters; Mechanical properties; Melting points; Modulus of elasticity; Molecular dynamics; Nuclear fuels; Nuclear reactors; Phase diagrams; Phase transitions; Physical properties; Room temperature; Simulation; Structure factor; Symmetry; Temperature; thermodynamic stability; Uranium base alloys; Zirconium; Zr; γ-(U,Zr); thermodynamic stability; γ-(U,Zr); dynamical structural factor; mechanical properties

High-temperature body-centered cubic (BCC) γ-U is effectively stablized by γ-(U,Zr) alloys that also make it feasible to use it as a nuclear fuel. However, relatively little research has focused on γ-(U,Zr) alloys due to their instability at room temperature. The effect of Zr composition on its mech...