- Cited by 10
Dai, Cong Balogh, Levente Yao, Zhongwen and Daymond, Mark R. 2016. Atomistic simulations of the formation of <c>-component dislocation loops in α-zirconium. Journal of Nuclear Materials, Vol. 478, Issue. , p. 125.
Yan, Chunguang Wang, Rongshan Dai, Xianyuan Wang, Yanli Wang, Xitao Bai, Guanghai and Zhang, Yanwei 2016. Investigation of hardening behavior in Xe ion-irradiated Zr–1Nb. Journal of Nuclear Materials, Vol. 473, Issue. , p. 256.
Patra, Anirban Tomé, Carlos N. and Golubov, Stanislav I. 2017. Crystal plasticity modeling of irradiation growth in Zircaloy-2. Philosophical Magazine, Vol. 97, Issue. 23, p. 2018.
Yu, Hongbing Yao, Zhongwen Idrees, Yasir Zhang, He K. Kirk, Mark A. and Daymond, Mark R. 2017. Accumulation of dislocation loops in the α phase of Zr Excel alloy under heavy ion irradiation. Journal of Nuclear Materials, Vol. 491, Issue. , p. 232.
JOUANNY, E. DORIOT, S. MALAPLATE, J. DEHMAS, M. ALLAIS, L. THUAUT, M. LE and MILLOT, T. 2017. Evolution of defects in titanium grade 2 under Ti2+ion irradiation. Journal of Microscopy, Vol. 265, Issue. 3, p. 275.
Liang, Jianlie Yu, Hongbing Barry, Aaron Corcoran, Emily C. Balogh, Levente and Daymond, Mark R. 2017. Re-investigation of phase transformations in the Zr-Excel alloy. Journal of Alloys and Compounds, Vol. 716, Issue. , p. 7.
Yu, Hongbing Liang, Jianlie Yao, Zhongwen Kirk, Mark A. and Daymond, Mark R. 2017. Effect of heavy ion irradiation on thermodynamically equilibrium Zr-Excel alloy. Journal of Nuclear Materials, Vol. 488, Issue. , p. 33.
Doriot, S. Onimus, F. Gilbon, D. Mardon, J.-P. and Bourlier, F. 2017. Transmission electron microscopy study of second phase particles irradiated by 2 MeV protons at 350 °C in Zr alloys. Journal of Nuclear Materials, Vol. 494, Issue. , p. 398.
Topping, Matthew Harte, Allan Frankel, Philipp Race, Christopher Sundell, Gustav Thuvander, Mattias Andrén, Hans-Olof Jadernas, Daniel Tejland, Pia Romero, Javier E. Darby, Edward C. Dumbill, Simon Hallstadius, Lars and Preuss, Michael 2018. Zirconium in the Nuclear Industry: 18th International Symposium. p. 796.
Doriot, Sylvie Verhaeghe, Bénédicte Soniak-Defresne, Annie Bossis, Philippe Gilbon, Didier Chabretou, Valérie Mardon, Jean-Paul Ton-That, Marc and Ambard, Antoine 2018. Zirconium in the Nuclear Industry: 18th International Symposium. p. 823.
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We report here the microstructural changes occurring in the zirconium alloy Excel (Zr–3.5 wt% Sn–0.8Nb–0.8Mo–0.2Fe) during heavy ion irradiation. In situ irradiation experiments were conducted at reactor operating temperatures on two Zr Excel alloy microstructures with different states of alloying elements, with the states achieved by different solution heat treatments. In the first case, the alloying elements were mostly concentrated in the beta (β) phase, whereas, in the second case, large Zr3(Mo,Nb,Fe)4 secondary phase precipitates (SPPs) were grown in the alpha (α) phase by long term aging. The heavy ion induced damage and resultant compositional changes were examined using transmission electron microscopy (TEM) in combination with scanning transmission electron microscope (STEM)-energy dispersive x-ray spectroscopy (EDS) mapping. Significant differences were seen in microstructural evolution between the two different microstructures that were irradiated under similar conditions. Nucleation and growth of <c>-component loops and their dependence on the alloying elements are a major focus of the current investigation. It was observed that the <c>-component loops nucleate readily at 100, 300, and 400 °C after a threshold incubation dose (TID), which varies with irradiation temperature and the state of alloying elements. It was found that the TID for the formation of <c>-component loops increases with decrease in irradiation temperature. Alloying elements that are present in the form of SPPs increase the TID compared to when they are in the β phase solid solution. Dose and temperature dependence of loop size and density are presented. Radiation induced redistribution and clustering of alloying elements (Sn, Mo, and Fe) have been observed and related to the formation of <c>-component loops. It has been shown that at the higher temperature tests, irradiation induced dissolution of precipitates occurs whereas irradiation induced amorphization occurs at 100 °C. Furthermore, dose and temperature seem to be the main factors governing the dissolution of SPPs and redistribution of alloying elements, which in turn controls the nucleation and growth of <c>-component loops. The correlation between the microstructural evolution and microchemistry has been found by EDS and is discussed in detail.
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