کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7965574 1514180 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simulation of He embrittlement at grain boundaries in bcc transition metals
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
Simulation of He embrittlement at grain boundaries in bcc transition metals
چکیده انگلیسی
To investigate what atomic properties largely determine vulnerability to He embrittlement at grain boundaries (GB) of bcc metals, we introduce a computational model composed of first principles density functional theory and a He segregation rate theory model. Predictive calculations of He embrittlement at the first wall of the future DEMO fusion concept reactor indicate that variation in the He embrittlement originated not only from He production rate related to neutron irradiation, but also from the He segregation energy at the GB that has a systematic trend in the periodic table.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 465, October 2015, Pages 695-701
نویسندگان
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