TY - JOUR AU - Larionov A V AU - Pikulin K V AU - Novikov D O AU - Chumarev V M AU - Smirnov L A PY - 2019/03/17 Y2 - 2024/03/28 TI - Phase Composition of Mo-Si-V Hypoeutectic Alloys JF - KnE Materials Science JA - Kms VL - 5 IS - 1 SE - Articles DO - 10.18502/kms.v5i1.3957 UR - https://knepublishing.com/index.php/KnE-Materials/article/view/3957 AB - Thermodynamic modeling (TDM) of phase formation was performed with vanadium doping of the hypoeutectic Mo-Si alloy. It was found that the thermochemical properties of vanadium silicides (presented in the HSC Chemistry 6.12 database), when modeling Mo-Si(14.5-12.2)-V(5.0-20.0) alloys, lead to inadequate results regarding Mo-Si-V diagram state indicators. The simulation results agree satisfactorily with the Mo-Si-V diagram with the following values of ΔH0 298: for V3Si = - 180.4 kJ / mol, for V5Si3 = -433.6 kJ / mol, for VSi2 = -124.5 kJ / mol. According to the results of TDM and X-ray phase analysis (XRD) of the obtained alloys, it was found that vanadium in Mo-Si-V ternary alloys can be found both in the form of silicides, (Mo,V)3Si, and in the composition of the solid solution (Mo,V) ER -