Suppression of vacancy formation and hydrogen isotope retention in irradiated tungsten by addition of chromium
Suppression of vacancy formation and hydrogen isotope retention in irradiated tungsten by addition of chromium
复制标题
添加铬抑制辐照钨中的空位形成和氢同位素保留
DOI：
10.1016/j.jnucmat.2021.153449
复制
发表时间：
2022
影响因子：
3.1
通讯作者：
Schwarz-Selinger Thomas
中科院分区：
文献类型：
--
作者：
Wang Jing;Hatano Yuji;Toyama Takeshi;Suzudo Tomoaki;Hinoki Tatsuya;Alimov Vladimir Kh.;Schwarz-Selinger Thomas
为了研究钨基体中铬含量对空位形成和氢同位素保留的影响，对W-0.3at.%用6.4MeV的Fe离子在523-1273 K温度范围内辐照Cr合金，使其损伤水平达到0.26位移/原子（dpa）。将这些位移损伤的样品暴露于温度为673 K和压力为100 kPa的D2气体中，以用氘装饰离子诱导的缺陷。添加0.3at.%在高温（≥773 K）下，Cr的掺入导致氘的保留率显著降低。正电子寿命（W-0.3 at.%）Cr合金在1073 K下辐照后的组织结构与未辐照的相似。这些事实表明，通过0.3at.%抑制空位型缺陷（单空位和空位簇）的形成Cr的添加，这导致W-0.3at.%中氘保留的显著降低铬合金。
To study the effect of the content of chromium (Cr) in the tungsten (W) matrix on the vacancy formation and retention of hydrogen isotopes, the samples of the W-0.3 at.% Cr alloy were irradiated with 6.4 MeV Fe ions in the temperature range of 523–1273 K to a damage level of 0.26 displacement per atom (dpa). These displacement-damaged samples were exposed to D2gas at a temperature of 673 K and a pressure of 100 kPa to decorate ion-induced defects with deuterium. The addition of 0.3 at.% Cr into the W matrix resulted in a significant decrease in the retention of deuterium compared to pure W after irradiation especially at high temperature (≥773 K). Positron lifetime in W-0.3 at.% Cr alloy irradiated at 1073 K was almost similar to that for non-irradiated one. These facts indicate the suppression of the formation of vacancy-type defects (monovacancies and vacancy clusters) by 0.3 at.% Cr addition, which leads to the significant reduction in deuterium retention in W-0.3 at.% Cr alloy.
影响因子：
3.1
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
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
DOI：
10.1016/j.nimb.2008.11.045
发表时间：
2009-02-01
影响因子：
1.3
作者：
Troev, T.;Popov, E.;Yoshiie, T.
通讯作者：
Yoshiie, T.
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Y. Ueda;H. Tanaka;K. Tanimoto;Y. Ohtsuka;他;全11人
通讯作者：
全11人