Thermo-mechanical properties of random ternary alloy V-5Cr-5Ti

H.S. M. Phuong, N.T. H. Trung ORCID logo , M.D. Starostenkov показать трудоустройства и электронную почту
Получена 07 ноября 2024; Принята 25 декабря 2024;
Эта работа написана на английском языке
Цитирование: H.S. M. Phuong, N.T. H. Trung, M.D. Starostenkov. Thermo-mechanical properties of random ternary alloy V-5Cr-5Ti. Письма о материалах. 2025. Т.15. №1. С.36-42
BibTex   https://doi.org/10.48612/letters/2025-1-36-42

Аннотация

Density profile of the simulation box along the x-axis, illustrating the shift of the solid-liquid interface toward the solid region at temperatures above the melting point. The top image shows the original simulation box of the V-5Cr-5Ti alloy, while the bottom image displays the same simulation box with structure types identified using Common Neighbor Analysis.Vanadium alloys are recognized as leading candidate materials for fusion applications, particularly in first wall and ceiling structures. As a structural material for Generation IV and future fusion reactors, the vanadium-rich V-5Cr-5Ti alloy is expected to operate at high temperatures ranging from 500°C to 1000°C and withstand damage levels of up to 150 – 200 dpa, depending on the characteristics of alloying elements and the neutron spectrum. In this paper, we investigate several thermal and mechanical properties of V-5Cr-5Ti ternary alloy, including the equilibrium melting point (Tm), thermal conductivity (k), volumetric thermal expansion coefficient (α), specific heat capacity (Cp) at constant pressure, self-diffusion, elastic constants, and tensile deformation. The results indicate that the V-5Cr-5Ti alloy has a relatively high melting point, excellent thermal conductivity, high tensile strength, and low thermal expansion. These properties confer a high heat load capacity, making this alloy one of the most promising materials for the first wall and blanket structures of next-generation fusion reactors.

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