Intermetallic Re phases formed in ion irradiated WRe alloy

Intermetallic Re phases formed in ion irradiated WRe alloy

Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable to reproduce this, denying the community the ability to accurately simulate neutron damage microstructures and probe precipitate formation. We...

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Bibliographic Details
Published in:Journal of nuclear materials Vol. 514; pp. 123 - 127
Main Authors: Harrison, R.W., Greaves, G., Hinks, J.A., Donnelly, S.E.
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 01-02-2019
Elsevier BV
Subjects:
Chemical precipitation
Energy
Flux density
Ion irradiation
Irradiation
Neutron irradiation
Precipitates
Precipitation
Rhenium
Tungsten
Tungsten base alloys
Neutron irradiation
Precipitation
Ion irradiation
Rhenium
Tungsten
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Summary:Intermetallic Re precipitation at concentrations below the solubility limit is a puzzling phenomenon in neutron irradiated W. Ion irradiation has been unable to reproduce this, 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 and is concluded to have caused redissolution of precipitates and prevented their observation.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2018.11.021