Deuterium retention in W and binary W alloys irradiated with high energy Fe ions
Deuterium retention in W and binary W alloys irradiated with high energy Fe ions
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DOI：
10.1016/j.jnucmat.2020.152749
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发表时间：
2021-03
影响因子：
3.1
通讯作者：
Jing Wang;Y. Hatano;T. Hinoki;V. Alimov;A. Spitsyn;N. Bobyr;S. Kondo;T. Toyama;Heun Tae Lee;Y. Ueda;T. Schwarz-Selinger
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文献类型：
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作者：
Jing Wang;Y. Hatano;T. Hinoki;V. Alimov;A. Spitsyn;N. Bobyr;S. Kondo;T. Toyama;Heun Tae Lee;Y. Ueda;T. Schwarz-Selinger
为了系统地研究Re等元素对W和二元W合金（Re、Mo和Ta）氘（D）滞留的影响，在高温（1073-1273 K）下用6.4 MeV Fe离子辐照W合金，然后暴露于673 K的D2气体中。用核反应分析（NRA）测定了D的深度分布，用热脱附光谱（TDS）和NRA测定了D的保留。添加5at.% Re到W中减少D的含量被困在辐射诱导的缺陷所产生的辐射与Fe离子在1273 K的峰值损伤水平的5位移每原子（dpa）。在Re分数为1、3和5原子%时，在1073 K下照射到0.5dpa后，观察到对D保留的类似影响。添加Mo和Ta到W中导致D保留没有可见的效果。
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 D2gas 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.