Intermetallic Re phases formed in ion irradiated WRe alloy

R.W. Harrison; G. Greaves; J.A. Hinks; S.E. Donnelly

doi:10.1016/j.jnucmat.2018.11.021

Intermetallic Re phases formed in ion irradiated WRe alloy

R.W. Harrison, G. Greaves, J.A. Hinks, S.E. Donnelly

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Abstract

Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable to reproduce their formation, denying the community the ability to accurately simulate neutron damage microstructures and probe precipitate formation. We have recently been successful in inducing σ (WRe) and χ (WRe3) phase formations in W26Re irradiated with 350 keV Ne ions at 500 and 800 °C. The precipitation of these phases is related to the effects of cascade energy density and ballistic mixing during previous high energy self-ion irradiations is concluded to have caused redissolution of precipitates and thus prevented their observation.

Original language	English
Pages (from-to)	123-127
Journal	Journal of Nuclear Materials
Volume	514
Early online date	14 Nov 2018
DOIs	https://doi.org/10.1016/j.jnucmat.2018.11.021
Publication status	Published - Feb 2019

Keywords

Tungsten, Rhenium, Precipitation, Neutron irradiation, Ion irradiation

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10.1016/j.jnucmat.2018.11.021

Intermetallic Re phases formed in ion irradiated WRe alloyFinal published version, 1.49 MBLicence: CC BY

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abstract = "Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable to reproduce their formation, denying the community the ability to accurately simulate neutron damage microstructures and probe precipitate formation. We have recently been successful in inducing σ (WRe) and χ (WRe3) phase formations in W26Re irradiated with 350 keV Ne ions at 500 and 800 °C. The precipitation of these phases is related to the effects of cascade energy density and ballistic mixing during previous high energy self-ion irradiations is concluded to have caused redissolution of precipitates and thus prevented their observation.",

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T1 - Intermetallic Re phases formed in ion irradiated WRe alloy

AU - Harrison, R.W.

AU - Greaves, G.

AU - Hinks, J.A.

AU - Donnelly, S.E.

PY - 2019/2

Y1 - 2019/2

N2 - Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable to reproduce their formation, denying the community the ability to accurately simulate neutron damage microstructures and probe precipitate formation. We have recently been successful in inducing σ (WRe) and χ (WRe3) phase formations in W26Re irradiated with 350 keV Ne ions at 500 and 800 °C. The precipitation of these phases is related to the effects of cascade energy density and ballistic mixing during previous high energy self-ion irradiations is concluded to have caused redissolution of precipitates and thus prevented their observation.

AB - Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable to reproduce their formation, denying the community the ability to accurately simulate neutron damage microstructures and probe precipitate formation. We have recently been successful in inducing σ (WRe) and χ (WRe3) phase formations in W26Re irradiated with 350 keV Ne ions at 500 and 800 °C. The precipitation of these phases is related to the effects of cascade energy density and ballistic mixing during previous high energy self-ion irradiations is concluded to have caused redissolution of precipitates and thus prevented their observation.

KW - Tungsten, Rhenium, Precipitation, Neutron irradiation, Ion irradiation

U2 - 10.1016/j.jnucmat.2018.11.021

DO - 10.1016/j.jnucmat.2018.11.021

M3 - Article

SN - 0022-3115

VL - 514

SP - 123

EP - 127

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Intermetallic Re phases formed in ion irradiated WRe alloy

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Keywords

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