Vanadium alloys on the threshold of wide application in energetics

Kalin, B. A.; Stal’tsov, M. S.; Tishchenko, A. G.; Chernov, I. I.

doi:10.17580/tsm.2016.11.08

Cited by 8 publications

(2 citation statements)

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“…hydrostatic compression. Several potential uses of the uniaxial tension, compression and shear stress effect on melting point can be exemplified via a study of Earth core materials' behaviour under pressure on the order of hundreds of GPa [12] or study of melting point alteration during the work of nuclear fusion reactor [13]. This topic is also of vital importance to condensed matter physics, astrophysics and metallurgy.…”

Section: Introductionmentioning

confidence: 99%

Melting of tungsten under uniaxial and shear stresses: molecular dynamics simulation

Akzhigitov

Srymbetov

Golman

et al. 2020

Modelling Simul. Mater. Sci. Eng.

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Understanding melting processes in refractory materials under external stresses is important and can be of particular interest in harsh environment applications ranging from aerospace to nuclear and fusion energy where these materials have to simultaneously withstand the effect of high temperatures and complex stress states in such ways, that a melting process might be initiated in extreme conditions. However, most if not all of the prior research was focused on melting phenomena in the presence of hydrostatic compression. In our work, we investigate melting phenomena in pure tungsten under uniaxial tension, uniaxial compression, hydrostatic tension, and shear stress states. We explore these relationships numerically by molecular dynamics simulations employing extended Finnis–Sinclair (EFS) potential and two-phase method and compare our results with theoretical and experimental findings reported in the literature. The melting behaviour was investigated for all the studied stress states and compared both quantitatively and qualitatively on the basis of equivalent strain, Cauchy stress tensor invariants, and maximum shear stress. For uniaxial tension, hydrostatic tension, and shear stress an abrupt decline of stress-induced melting point values was detected after certain critical stress values. New high-temperature thermo-mechanical results are correlated with intricate structural changes taking place on the atomic scale during metal-melt phase transition.

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Section: Introductionmentioning

confidence: 99%

Melting of tungsten under uniaxial and shear stresses: molecular dynamics simulation

Akzhigitov

Srymbetov

Golman

et al. 2020

Modelling Simul. Mater. Sci. Eng.

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“…Vanadium Alloy has attracted increasing attention due to their wide range of applications in first-wall and blanket structural material for fusion power plant applications [1] [2] [3] [4]. Traditionally, vanadium alloy parts have been prepared by casting combined with forging method.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Analysis of Vanadium-Based Metal Powders for Selective Laser Melting

Yang¹,

Li²

2018

JMMCE

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Vanadium Alloy is a type of advanced nuclear material with many ideal properties compared as traditional nuclear materials, which has very wide and important application in first-wall and blanket structural material for fusion power plant applications. So it has attracted increasing attentions, especially on new manufacturing methods, such as selective laser melting and so on. In this paper, the comparative study of the powders obtained by mechanical mixing method, dry grinding method and wet grinding method respectively was performed to evaluate the effect of ball milling process on the microstructure and degree of alloying of the vanadium-based powder mixtures with the nominal composition of V 5 Cr 5 Ti vanadium alloy. The powders prepared by dry grinding method exhibits better spherical-like morphology and degree of alloying than those prepared by mechanical mixing method and wet grinding method, which indicates that dry grinding method can be used to prepare the superfine vanadium alloy powders for selective laser melting. This work provides a new method as well as important insights into the preparation of superfine vanadium alloy powders for selective laser melting additive manufacturing technology.

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Features of Gas Porosity Formation Along Helium Ion Trajectories in Vanadium Alloys

et al. 2019

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Vanadium alloys on the threshold of wide application in energetics

Cited by 8 publications

References 0 publications

Melting of tungsten under uniaxial and shear stresses: molecular dynamics simulation

Melting of tungsten under uniaxial and shear stresses: molecular dynamics simulation

Fabrication and Analysis of Vanadium-Based Metal Powders for Selective Laser Melting

Features of Gas Porosity Formation Along Helium Ion Trajectories in Vanadium Alloys

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