Deuterium retention in W and binary W alloys irradiated with high energy Fe ions

Jing Wang; Yuji Hatano; Tatsuya Hinoki; Vladimir Kh Alimov; Alexander V. Spitsyn; Nikolay P. Bobyr; Sosuke Kondo; Takeshi Toyama; Heun Tae Lee; Yoshio Ueda; Thomas Schwarz-Selinger

doi:10.1016/j.jnucmat.2020.152749

Deuterium retention in W and binary W alloys irradiated with high energy Fe ions

Jing Wang, Yuji Hatano, Tatsuya Hinoki, Vladimir Kh Alimov, Alexander V. Spitsyn, Nikolay P. Bobyr, Sosuke Kondo, Takeshi Toyama, Heun Tae Lee, Yoshio Ueda, Thomas Schwarz-Selinger

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Abstract

To investigate systematically the effects of Re and other elements on deuterium (D) retention, W and binary W-alloys (Re, Mo and Ta) were irradiated with 6.4 MeV Fe ions at high temperatures (1073–1273 K) and then exposed to D₂ gas at 673 K. Depth profiles of D were measured by nuclear reaction analysis (NRA), and D retention was determined by thermal desorption spectrometry (TDS) and NRA. The addition of 5 at.% Re into W reduced the content of D trapped at radiation-induced defects created by irradiation with the Fe ions at 1273 K to the peak damage level of 5 displacements per atom (dpa). At Re fractions of 1, 3 and 5 at.%, comparable effects on D retention were observed after irradiation to 0.5 dpa at 1073 K. The addition of Mo and Ta to W resulted in no visible effects in D retention.

Original language	English
Article number	152749
Journal	Journal of Nuclear Materials
Volume	545
DOIs	https://doi.org/10.1016/j.jnucmat.2020.152749
Publication status	Published - 2021 Mar

Keywords

Deuterium retention
Ion irradiation
Molybdenum
Rhenium
Tantalum
Tungsten

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10.1016/j.jnucmat.2020.152749

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title = "Deuterium retention in W and binary W alloys irradiated with high energy Fe ions",

abstract = "To investigate systematically the effects of Re and other elements on deuterium (D) retention, W and binary W-alloys (Re, Mo and Ta) were irradiated with 6.4 MeV Fe ions at high temperatures (1073–1273 K) and then exposed to D2 gas at 673 K. Depth profiles of D were measured by nuclear reaction analysis (NRA), and D retention was determined by thermal desorption spectrometry (TDS) and NRA. The addition of 5 at.% Re into W reduced the content of D trapped at radiation-induced defects created by irradiation with the Fe ions at 1273 K to the peak damage level of 5 displacements per atom (dpa). At Re fractions of 1, 3 and 5 at.%, comparable effects on D retention were observed after irradiation to 0.5 dpa at 1073 K. The addition of Mo and Ta to W resulted in no visible effects in D retention.",

keywords = "Deuterium retention, Ion irradiation, Molybdenum, Rhenium, Tantalum, Tungsten",

author = "Jing Wang and Yuji Hatano and Tatsuya Hinoki and Alimov, {Vladimir Kh} and Spitsyn, {Alexander V.} and Bobyr, {Nikolay P.} and Sosuke Kondo and Takeshi Toyama and Lee, {Heun Tae} and Yoshio Ueda and Thomas Schwarz-Selinger",

note = "Funding Information: This work is supported by JSPS Kakenhi Grant Number JP18H03688 , Japan-Russia Research Cooperative Program between JSPS and RFBR Grant numbers JPJSBP120204808 and 20-58-50005 , and the Joint Usage/Research Program on Zero-Emission Energy Research, Institute of Advanced Energy, Kyoto University ( ZE31A-25 and ZE2020A-02 ). Publisher Copyright: {\textcopyright} 2020",

year = "2021",

month = mar,

doi = "10.1016/j.jnucmat.2020.152749",

language = "English",

volume = "545",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier",

}

TY - JOUR

T1 - Deuterium retention in W and binary W alloys irradiated with high energy Fe ions

AU - Wang, Jing

AU - Hatano, Yuji

AU - Hinoki, Tatsuya

AU - Alimov, Vladimir Kh

AU - Spitsyn, Alexander V.

AU - Bobyr, Nikolay P.

AU - Kondo, Sosuke

AU - Toyama, Takeshi

AU - Lee, Heun Tae

AU - Ueda, Yoshio

AU - Schwarz-Selinger, Thomas

N1 - Funding Information: This work is supported by JSPS Kakenhi Grant Number JP18H03688 , Japan-Russia Research Cooperative Program between JSPS and RFBR Grant numbers JPJSBP120204808 and 20-58-50005 , and the Joint Usage/Research Program on Zero-Emission Energy Research, Institute of Advanced Energy, Kyoto University ( ZE31A-25 and ZE2020A-02 ). Publisher Copyright: © 2020

PY - 2021/3

Y1 - 2021/3

N2 - To investigate systematically the effects of Re and other elements on deuterium (D) retention, W and binary W-alloys (Re, Mo and Ta) were irradiated with 6.4 MeV Fe ions at high temperatures (1073–1273 K) and then exposed to D2 gas at 673 K. Depth profiles of D were measured by nuclear reaction analysis (NRA), and D retention was determined by thermal desorption spectrometry (TDS) and NRA. The addition of 5 at.% Re into W reduced the content of D trapped at radiation-induced defects created by irradiation with the Fe ions at 1273 K to the peak damage level of 5 displacements per atom (dpa). At Re fractions of 1, 3 and 5 at.%, comparable effects on D retention were observed after irradiation to 0.5 dpa at 1073 K. The addition of Mo and Ta to W resulted in no visible effects in D retention.

AB - To investigate systematically the effects of Re and other elements on deuterium (D) retention, W and binary W-alloys (Re, Mo and Ta) were irradiated with 6.4 MeV Fe ions at high temperatures (1073–1273 K) and then exposed to D2 gas at 673 K. Depth profiles of D were measured by nuclear reaction analysis (NRA), and D retention was determined by thermal desorption spectrometry (TDS) and NRA. The addition of 5 at.% Re into W reduced the content of D trapped at radiation-induced defects created by irradiation with the Fe ions at 1273 K to the peak damage level of 5 displacements per atom (dpa). At Re fractions of 1, 3 and 5 at.%, comparable effects on D retention were observed after irradiation to 0.5 dpa at 1073 K. The addition of Mo and Ta to W resulted in no visible effects in D retention.

KW - Deuterium retention

KW - Ion irradiation

KW - Molybdenum

KW - Rhenium

KW - Tantalum

KW - Tungsten

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VL - 545

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

M1 - 152749

ER -

Deuterium retention in W and binary W alloys irradiated with high energy Fe ions

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