Radiation induced hardening of ion irradiated RPV steels
Radiation induced hardening of ion irradiated RPV steels
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DOI：
10.1016/j.jnucmat.2010.12.179
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发表时间：
2011-10
影响因子：
3.1
通讯作者：
Hideo Watanabe;S. Masaki;Shunji Masubuchi;N. Yoshida;Y. Kamada
中科院分区：
文献类型：
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作者：
Hideo Watanabe;S. Masaki;Shunji Masubuchi;N. Yoshida;Y. Kamada
众所周知，A533B 钢的辐射硬化和脆化对微量溶质含量非常敏感。为了研究对这些材料微观结构演变的影响，用 2.4MeV Fe 离子辐照不同 Cu 含量的 A533B 钢。离子照射在 290°C 下进行，也在室温下进行，剂量高达 2dpa。辐照后，通过透射电子显微镜观察样品的微观结构。在 HVEM 中在室温下使用额外的电子照射，在基体中以及位错附近形成的小位错环被识别为间隙位错环。
It is well known that radiation hardening and embrittlement of A533B steels is very sensitive to minor solute content. To investigate the effect on microstructural evolution of these materials, A533B steels with different Cu levels were irradiated by 2.4MeV Fe ions. The ion irradiation was performed at 290°C and also at room temperature up to a dose of 2dpa. After the irradiation, the microstructure of the specimens was observed by transmission electron microcopy. Small dislocation loops formed in the matrix and also in the vicinity of dislocation were identified as interstitial dislocation loops, using additional electron irradiation at room temperature in the HVEM.