The impact of surface morphology on the erosion of metallic surfaces – Modelling with the 3D Monte-Carlo code ERO2.0

A. Eksaeva; D. Borodin; J. Romazanov; A. Kirschner; A. Kreter; B.Göths; M. Rasinski; B. Unterberg; S. Brezinsek; Ch Linsmeier; E.Vassallo; M. Passoni; D. Dellasega; M. Sala; F. Romeo; I. Borodkina

doi:10.1016/j.nme.2021.100987

The impact of surface morphology on the erosion of metallic surfaces – Modelling with the 3D Monte-Carlo code ERO2.0

A. Eksaeva, D. Borodin, J. Romazanov, A. Kirschner, A. Kreter, B.Göths, M. Rasinski, B. Unterberg, S. Brezinsek, Ch Linsmeier, E.Vassallo, M. Passoni, D. Dellasega, M. Sala, F. Romeo, I. Borodkina

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11 Scopus citations

Abstract

The roughness of metallic surfaces has a vital impact on the erosion of plasma-facing materials. Roughness determines the effective sputtering yield Y_eff of the facing material. The angular/energy distribution of sputtered particles, and the spatial erosion and deposition distribution. The model for simulation the effect of the surface roughness was earlier implemented into the 3D Monte-Carlo code ERO2.0 and validated using results of ion beam experiments and experiments in the linear plasma device PSI-2. In the present study the developed ERO2.0 surface morphology model was applied to the JET-ILW tungsten (W) divertor consisting of smooth bulk W and W-coated CFC components. Influence of the surface roughness on the W erosion as well as on the transport of sputtered material in conditions of inclined magnetic field was investigated. Simulation results are in a good agreement with existing experimental findings.

Original language	English
Article number	100987
Journal	Nuclear Materials and Energy
Volume	27
DOIs	https://doi.org/10.1016/j.nme.2021.100987
State	Published - Jun 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021

Funding

The authors would like to acknowledge Dr. A. Widdowson and Dr. A. Baron-Wiechec for providing information concerning the JET-ILW Tile 5 and Tile 6 surface roughness. The authors gratefully acknowledge the computing time granted through JARA on the supercomputer JURECA at Forschungszentrum Jülich. This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

Funders	Funder number
Euratom research and training programme 2014–2018
Horizon 2020 Framework Programme	633053

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Eksaeva, A., Borodin, D., Romazanov, J., Kirschner, A., Kreter, A., B.Göths, Rasinski, M., Unterberg, B., Brezinsek, S., Linsmeier, C., E.Vassallo, Passoni, M., Dellasega, D., Sala, M., Romeo, F., & Borodkina, I. (2021). The impact of surface morphology on the erosion of metallic surfaces – Modelling with the 3D Monte-Carlo code ERO2.0. Nuclear Materials and Energy, 27, Article 100987. https://doi.org/10.1016/j.nme.2021.100987

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title = "The impact of surface morphology on the erosion of metallic surfaces – Modelling with the 3D Monte-Carlo code ERO2.0",

abstract = "The roughness of metallic surfaces has a vital impact on the erosion of plasma-facing materials. Roughness determines the effective sputtering yield Yeff of the facing material. The angular/energy distribution of sputtered particles, and the spatial erosion and deposition distribution. The model for simulation the effect of the surface roughness was earlier implemented into the 3D Monte-Carlo code ERO2.0 and validated using results of ion beam experiments and experiments in the linear plasma device PSI-2. In the present study the developed ERO2.0 surface morphology model was applied to the JET-ILW tungsten (W) divertor consisting of smooth bulk W and W-coated CFC components. Influence of the surface roughness on the W erosion as well as on the transport of sputtered material in conditions of inclined magnetic field was investigated. Simulation results are in a good agreement with existing experimental findings.",

author = "A. Eksaeva and D. Borodin and J. Romazanov and A. Kirschner and A. Kreter and B.G{\"o}ths and M. Rasinski and B. Unterberg and S. Brezinsek and Ch Linsmeier and E.Vassallo and M. Passoni and D. Dellasega and M. Sala and F. Romeo and I. Borodkina",

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Eksaeva, A, Borodin, D, Romazanov, J, Kirschner, A, Kreter, A, B.Göths, Rasinski, M, Unterberg, B, Brezinsek, S, Linsmeier, C, E.Vassallo, Passoni, M, Dellasega, D, Sala, M, Romeo, F & Borodkina, I 2021, 'The impact of surface morphology on the erosion of metallic surfaces – Modelling with the 3D Monte-Carlo code ERO2.0', Nuclear Materials and Energy, vol. 27, 100987. https://doi.org/10.1016/j.nme.2021.100987

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AU - Eksaeva, A.

AU - Borodin, D.

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AU - Kreter, A.

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AU - Unterberg, B.

AU - Brezinsek, S.

AU - Linsmeier, Ch

AU - E.Vassallo,

AU - Passoni, M.

AU - Dellasega, D.

AU - Sala, M.

AU - Romeo, F.

AU - Borodkina, I.

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The impact of surface morphology on the erosion of metallic surfaces – Modelling with the 3D Monte-Carlo code ERO2.0

Abstract

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