Zobrazeno 1 - 10
of 374
pro vyhledávání: '"Boleininger, A"'
Radiation creep and swelling are irreversible deformation phenomena occurring in materials irradiated even at low temperatures. On the microscopic scale, energetic particles initiate collision cascades, generating and eliminating defects that then in
Externí odkaz:
http://arxiv.org/abs/2409.13355
Publikováno v:
Acta Materialia 277 (2024) 120162
We recast the Howie-Whelan equations for generating simulated transmission electron microscope (TEM) images, replacing the dependence on local atomic displacements with atomic positions only. This allows very rapid computation of simulated TEM images
Externí odkaz:
http://arxiv.org/abs/2401.14781
Autor:
Feichtmayer, Alexander, Boleininger, Max, Riesch, Johann, Mason, Daniel R., Reali, Luca, Höschen, Till, Fuhr, Maximilian, Schwarz-Selinger, Thomas, Neu, Rudolf, Dudarev, Sergei L.
The occurrence of high stress concentrations in reactor components is a still intractable phenomenon encountered in fusion reactor design. We observe and quantitatively model a non-linear high-dose radiation mediated microstructure evolution effect t
Externí odkaz:
http://arxiv.org/abs/2401.13385
Autor:
Alexander Feichtmayer, Max Boleininger, Johann Riesch, Daniel R. Mason, Luca Reali, Till Höschen, Maximilian Fuhr, Thomas Schwarz-Selinger, Rudolf Neu, Sergei L. Dudarev
Publikováno v:
Communications Materials, Vol 5, Iss 1, Pp 1-9 (2024)
Abstract The occurrence of high stress concentrations in reactor components is a still intractable phenomenon encountered in fusion reactor design. Here, we observe and quantitatively model a non-linear high-dose radiation mediated microstructure evo
Externí odkaz:
https://doaj.org/article/fd440b0ddd5d4943a18263ae3f94d96b
Autor:
Warwick, Andrew R., Thomas, Rhys, Boleininger, Max, Koç, Ömer, Zilahi, Gyula, Ribárik, Gabor, Hegedues, Zoltan, Lienert, Ulrich, Ungar, Tamas, Race, Chris, Preuss, Michael, Frankel, Philipp, Dudarev, Sergei L.
Publikováno v:
Int. J. Plast. 164, 103590 (2023)
Zirconium alloys are widely used as the fuel cladding material in pressurised water reactors, accumulating a significant population of defects and dislocations from exposure to neutrons. We present and interpret synchrotron microbeam X-ray diffractio
Externí odkaz:
http://arxiv.org/abs/2304.03084
Publikováno v:
PRX Energy 2, 023008 (2023)
The effects of neutron irradiation on materials are often interpreted in terms of atomic recoils, initiated by neutron impacts and producing crystal lattice defects. In addition, there is a remarkable two-step process, strongly pronounced in the medi
Externí odkaz:
http://arxiv.org/abs/2210.09667
At temperatures below the onset of vacancy migration, metals exposed to energetic ions develop dynamically fluctuating steady-state microstructures. Statistical properties of these microstructures in the asymptotic high exposure limit are not univers
Externí odkaz:
http://arxiv.org/abs/2210.05010
Publikováno v:
Physical Review Materials, 6(6), 063601 (2022)
We derive a simple analytical line integral expression for the relaxation volume tensor of an arbitrary interconnected dislocation network. This quantity determines the magnitude of dislocation contribution to the dimensional changes and volumetric s
Externí odkaz:
http://arxiv.org/abs/2203.05282
Using the notion of eigenstrain produced by the defects formed in a material exposed to high energy neutron irradiation, we develop a method for computing macroscopic elastic stress and strain arising in components of a fusion power plant during oper
Externí odkaz:
http://arxiv.org/abs/2110.07955
Autor:
Mason, Daniel R., Granberg, Fredric, Boleininger, Max, Schwarz-Selinger, Thomas, Nordlund, Kai, Dudarev, Sergei L.
Publikováno v:
Phys. Rev. Materials 5, 095403 (2021)
Hydrogen isotopes are retained in materials for fusion power applications, changing both hydrogen embrittlement and tritium inventory as the microstructure undergoes irradiation damage. But modelling of highly damaged materials - exposed to over 0.1
Externí odkaz:
http://arxiv.org/abs/2106.12938