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

JOURNAL OF NUCLEAR MATERIALS

卷:545

Article

Wang, Jing¹  Hatano, Yuji¹  Hinoki, Tatsuya²  Alimov, Vladimir Kh.^3,4  Spitsyn, Alexander V.³  Bobyr, Nikolay P.³  Kondo, Sosuke⁵  Toyama, Takeshi⁵  Lee, Heun Tae⁶  Ueda, Yoshio⁶  Schwarz-Selinger, Thomas⁷ 

[1] Univ Toyama, Hydrogen Isotope Res Ctr, Org Promot Res, Toyama 9308555, Japan

[2] Kyoto Univ, Inst Adv Energy, Kyoto 6110011, Japan

[3] NRC Kurchatov Inst, Kurchatov Sq 1, Moscow 123182, Russia

[4] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Moscow 119071, Russia

[5] Tohoku Univ, Inst Mat Res, Sendai, Miyagi, Japan

[6] Osaka Univ, Grad Sch Engn, Osaka 5650871, Japan

[7] Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany

关键词: Tungsten;    Rhenium;    Molybdenum;    Tantalum;    Deuterium retention;    Ion irradiation;   

DOI  :  10.1016/j.jnucmat.2020.152749

来源: Elsevier

【 摘 要 】

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 D-2 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. (C) 2020 Elsevier B.V. All rights reserved.

【 授权许可】

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