Investigation of microstructure changes in ODS-EUROFER after hydrogen loading

O. V. Emelyanova; M. G. Ganchenkova; Evgenii Malitskii; Y. N. Yagodzinskyy; M. Klimenkov; V. A. Borodin; P. V. Vladimirov; R. Lindau; A. Möslang; Hannu Hänninen

doi:10.1016/j.jnucmat.2015.07.053

Investigation of microstructure changes in ODS-EUROFER after hydrogen loading

O. V. Emelyanova^*, M. G. Ganchenkova, Evgenii Malitskii, Y. N. Yagodzinskyy, M. Klimenkov, V. A. Borodin, P. V. Vladimirov, R. Lindau, A. Möslang, Hannu Hänninen

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The effect of hydrogen on the microstructure of mechanically tested ODS-EUROFER steel was investigated by means of transmission electron microscopy, thermal desorption spectroscopy, and atomistic simulations. The presence of yttrium oxide particles notably increases hydrogen uptake in ODS-EUROFER steel as compared to ODS-free EUROFER 97. Under tensile loading, hydrogen accumulation promotes the loss of cohesion at the oxide particle interfaces. First-principles molecular dynamics simulations indicate that hydrogen can be trapped at nanoparticle/matrix interface, creating OH-groups. The accumulation of hydrogen atoms at the oxide particle surface can be the reason for the observed hydrogen-induced oxide/matrix interface weakening and de-cohesion under the action of external tensile stress. (c) 2015 Elsevier B.V. All rights reserved.

Alkuperäiskieli	Englanti
Sivut	355-359
Sivumäärä	5
Julkaisu	Journal of Nuclear Materials
Vuosikerta	468
DOI - pysyväislinkit	https://doi.org/10.1016/j.jnucmat.2015.07.053
Tila	Julkaistu - tammik. 2016
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

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10.1016/j.jnucmat.2015.07.053

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@article{0f272d0a041c48d09b18f7ce97e8def2,

title = "Investigation of microstructure changes in ODS-EUROFER after hydrogen loading",

abstract = "The effect of hydrogen on the microstructure of mechanically tested ODS-EUROFER steel was investigated by means of transmission electron microscopy, thermal desorption spectroscopy, and atomistic simulations. The presence of yttrium oxide particles notably increases hydrogen uptake in ODS-EUROFER steel as compared to ODS-free EUROFER 97. Under tensile loading, hydrogen accumulation promotes the loss of cohesion at the oxide particle interfaces. First-principles molecular dynamics simulations indicate that hydrogen can be trapped at nanoparticle/matrix interface, creating OH-groups. The accumulation of hydrogen atoms at the oxide particle surface can be the reason for the observed hydrogen-induced oxide/matrix interface weakening and de-cohesion under the action of external tensile stress. (c) 2015 Elsevier B.V. All rights reserved.",

keywords = "Hydrogen, ODS steel, Thermal desorption spectroscopy, HRTEM, Ab initio, Molecular dynamics, STEELS, IRRADIATION, HELIUM",

author = "Emelyanova, {O. V.} and Ganchenkova, {M. G.} and Evgenii Malitskii and Yagodzinskyy, {Y. N.} and M. Klimenkov and Borodin, {V. A.} and Vladimirov, {P. V.} and R. Lindau and A. M{\"o}slang and Hannu H{\"a}nninen",

year = "2016",

month = jan,

doi = "10.1016/j.jnucmat.2015.07.053",

language = "English",

volume = "468",

pages = "355--359",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "ELSEVIER SCIENCE B.V.",

}

TY - JOUR

T1 - Investigation of microstructure changes in ODS-EUROFER after hydrogen loading

AU - Emelyanova, O. V.

AU - Ganchenkova, M. G.

AU - Malitskii, Evgenii

AU - Yagodzinskyy, Y. N.

AU - Klimenkov, M.

AU - Borodin, V. A.

AU - Vladimirov, P. V.

AU - Lindau, R.

AU - Möslang, A.

AU - Hänninen, Hannu

PY - 2016/1

Y1 - 2016/1

N2 - The effect of hydrogen on the microstructure of mechanically tested ODS-EUROFER steel was investigated by means of transmission electron microscopy, thermal desorption spectroscopy, and atomistic simulations. The presence of yttrium oxide particles notably increases hydrogen uptake in ODS-EUROFER steel as compared to ODS-free EUROFER 97. Under tensile loading, hydrogen accumulation promotes the loss of cohesion at the oxide particle interfaces. First-principles molecular dynamics simulations indicate that hydrogen can be trapped at nanoparticle/matrix interface, creating OH-groups. The accumulation of hydrogen atoms at the oxide particle surface can be the reason for the observed hydrogen-induced oxide/matrix interface weakening and de-cohesion under the action of external tensile stress. (c) 2015 Elsevier B.V. All rights reserved.

AB - The effect of hydrogen on the microstructure of mechanically tested ODS-EUROFER steel was investigated by means of transmission electron microscopy, thermal desorption spectroscopy, and atomistic simulations. The presence of yttrium oxide particles notably increases hydrogen uptake in ODS-EUROFER steel as compared to ODS-free EUROFER 97. Under tensile loading, hydrogen accumulation promotes the loss of cohesion at the oxide particle interfaces. First-principles molecular dynamics simulations indicate that hydrogen can be trapped at nanoparticle/matrix interface, creating OH-groups. The accumulation of hydrogen atoms at the oxide particle surface can be the reason for the observed hydrogen-induced oxide/matrix interface weakening and de-cohesion under the action of external tensile stress. (c) 2015 Elsevier B.V. All rights reserved.

KW - Hydrogen

KW - ODS steel

KW - Thermal desorption spectroscopy

KW - HRTEM

KW - Ab initio

KW - Molecular dynamics

KW - STEELS

KW - IRRADIATION

KW - HELIUM

U2 - 10.1016/j.jnucmat.2015.07.053

DO - 10.1016/j.jnucmat.2015.07.053

M3 - Article

VL - 468

SP - 355

EP - 359

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -

Investigation of microstructure changes in ODS-EUROFER after hydrogen loading

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