The major trap sites of deuterium in CuCrZr alloy
The major trap sites of deuterium in CuCrZr alloy
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CuCrZr合金中氘的主要俘获位点
DOI：
10.1016/j.nme.2020.100755
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发表时间：
2020-05
影响因子：
2.6
通讯作者：
Guang-Nan Luo
中科院分区：
文献类型：
--
作者：
Hao-Dong Liu;Hai-Shan Zhou;Si-Xiang Zhao;Lu Wang;Ran Wei;Guang-Nan Luo
用热脱附谱研究了CuCrZr合金样品经773、873、973和1073 K退火后，在2.5 × 104Pa、723 K的D2气体中暴露10 h后，其主要氘陷阱的能量特征。无氧铜（OFC）的样品也以相同的方式进行了研究。对于OFC，在773 K退火可以明显降低D保留。这表明773 K的温度足够高以减少由本征缺陷（即空位、位错和晶界）捕获的总D量。而对于CuCrZr合金，在退火温度高于1073 K之前，热处理不会显著降低D保持率。扫描电子显微镜（SEM）和能谱仪（EDS）观察表明，1073 K退火后，析出相颗粒密度增加，尤其是富Zr析出相颗粒密度增加。这表明固溶在基体中的Zr原子是CuCrZr合金中D滞留的主要原因。从TDS测量中估计，从CuCrZr合金中溶解的Zr原子的D脱陷能量为0.98 eV。
The energy characteristics of the main deuterium (D) traps in CuCrZr alloy samples, which were previously annealed at temperatures of 773, 873, 973 and 1073 K and then exposed to D2gas at a pressure of 2.5 × 104Pa and a temperature of 723 K for 10 h, were studied by thermal desorption spectroscopy. Samples of oxygen free copper (OFC) were also investigated in the same way. For OFC, annealing at 773 K could reduce D retention appreciably. It indicates the temperature of 773 K is high enough to reduce the total D amount trapped by intrinsic defects (i.e. vacancies, dislocations and grain boundaries). However, for CuCrZr alloy, heat treatment does not reduce the D retention significantly until the annealing temperature is higher than 1073 K. Scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) observations show that the density of precipitate particles especially the Zr-rich precipitate particles increase for the 1073 K-annealed one. It suggests the dissolved Zr atoms in the substrate are responsible for the D retention in CuCrZr alloy. D detrapping energy from the dissolved Zr atoms in CuCrZr alloy is estimated to be 0.98 eV from the TDS measurements.
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影响因子：
3.1
作者：
Zhou Hai-Shan;Liu Hao-Dong;An Zhong-Qing;Li Bo;Xu Yu-Ping;Liu Feng;Zhao Ming-Zhong;Xu Qian;Ding Fang;Luo Guang-Nan
通讯作者：
Luo Guang-Nan
影响因子：
3.1
作者：
Kalinin, G;Barabash, V;Tivey, R
通讯作者：
Tivey, R
DOI：
10.1134/s0031918x1607019x
发表时间：
2016-07
期刊：
The Physics of Metals and Metallography
影响因子：
--
作者：
V. Zel’dovich;N. Frolova;I. Khomskaya;A. Kheĭfets
通讯作者：
V. Zel’dovich;N. Frolova;I. Khomskaya;A. Kheĭfets
影响因子：
--
作者：
Hisashi Suzuki;M. Kanno;I. Kawakatsu
通讯作者：
Hisashi Suzuki;M. Kanno;I. Kawakatsu
影响因子：
3.1
作者：
M. Merola;A. Orsini;E. Visca;S. Libera;L. Moreschi;S. Storai;B. Panella;E. Campagnoli;G. Ruscica;C. Bosco
通讯作者：
M. Merola;A. Orsini;E. Visca;S. Libera;L. Moreschi;S. Storai;B. Panella;E. Campagnoli;G. Ruscica;C. Bosco