Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1564986 | Journal of Nuclear Materials | 2014 | 4 Pages |
Abstract
Dislocation loops induced by helium irradiation at elevated temperatures in reduced-activation martensitic steels were investigated using transmission electron microscopy. Steels were irradiated with 100 keV helium ions to 0.8 dpa between 300 K and 723 K. At irradiation temperatures Tirr ⩽ 573 K, small defects with both Burger vectors b = 1/2〈1 1 1〉 and b = 〈1 0 0〉 were observed, while at Tirr ⩾ 623 K, the microstructure was dominated by large convoluted interstitial dislocation loops with b = 〈1 0 0〉. Only small cavities were found in the steels irradiated at 723 K.
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Authors
Fengfeng Luo, Liping Guo, Jihong Chen, Tiecheng Li, Zhongcheng Zheng, Z. Yao, Jinping Suo,