采用超高压电镜与离子加速器相连结的复合辐照装置, 研究了注He对 低活性Fe-Cr-Mn (W, V)合金辐照产生的点缺陷及二次缺陷行为的影响. 实验结果 表明: 辐照初期形成的点缺陷与He相互作用, 进而影响二次缺陷(位错、位错 环和空洞)的形成；He明显促进位错密度增大和空洞核心形成, 并导致空洞肿胀 增加. 对辐照产生的点缺陷与He相互作用的机理进行了理论分析.
In order to investigate the effects of helium on the excess point defects and secondary defects processes in low activation Fe-Cr-Mn(W,V) alloys during electron beam and electron-He+ ion dual beam irradiation, the in situ observation was carried out using a high voltage electron microscope connected with an ion accelerator. The experiment result indicates that the interaction between helium and point defect clusters formed in the early stage of irradiation affected the secondary defects (dislocation, dislocation loop and void) formation. The helium enhances the increase in dislocation density and void nucleation site obviously. As a result, the void swelling in Fe-Cr-Mn(W,V) alloy was enhanced. The mechanism of interaction between helium and point defects produced by irradiation was also discussed.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%