Guoying Li , Zhanqiang Liu , Bing Wang , Zhao Qian , Zongde Kou , Yingwen Li
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引用次数: 0
Abstract
Tellurium (Te) in molten salt reactors (MSR) induces intergranular corrosion and material failure in nickel-based superalloys. This paper investigates the failure mechanism using experiments and first-principles calculations. Four characteristics of tellurides are experimentally identified, revealing the causes of Te-induced failure. The effects of Te doping on segregation energy, grain boundary binding energy, charge density and density of states are analyzed. The superlattice heterojunction interface model is developed to compute the interfacial adhesion work. A cross-scale transfer mechanism connecting electronic interactions, atomic behavior, microstructure and Te-induced failure is established to explain the degradation of mechanical properties.
期刊介绍：
The Journal of Nuclear Materials publishes high quality papers in materials research for nuclear applications, primarily fission reactors, fusion reactors, and similar environments including radiation areas of charged particle accelerators. Both original research and critical review papers covering experimental, theoretical, and computational aspects of either fundamental or applied nature are welcome.
The breadth of the field is such that a wide range of processes and properties in the field of materials science and engineering is of interest to the readership, spanning atom-scale processes, microstructures, thermodynamics, mechanical properties, physical properties, and corrosion, for example.
Topics covered by JNM
Fission reactor materials, including fuels, cladding, core structures, pressure vessels, coolant interactions with materials, moderator and control components, fission product behavior.
Materials aspects of the entire fuel cycle.
Materials aspects of the actinides and their compounds.
Performance of nuclear waste materials; materials aspects of the immobilization of wastes.
Fusion reactor materials, including first walls, blankets, insulators and magnets.
Neutron and charged particle radiation effects in materials, including defects, transmutations, microstructures, phase changes and macroscopic properties.
Interaction of plasmas, ion beams, electron beams and electromagnetic radiation with materials relevant to nuclear systems.
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