کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
273848 505069 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An evaluation of helium embrittlement resistance of reduced activation martensitic steels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
An evaluation of helium embrittlement resistance of reduced activation martensitic steels
چکیده انگلیسی

Susceptibility to high temperature helium embrittlement was examined on several reduced activation ferritic/martensitic steels through creep rupture testing after hot helium implantation at a cyclotron, so as to procure knowledge beneficial for determination on the upper limit temperature of the materials of this kind in first wall/blanket structural application. Creep properties (lifetime, minimum creep rate and rupture elongation) were not significantly deteriorated by helium up to the concentration of fusion DEMO reactor level. In addition, fracture occurred in a perfectly transgranular and ductile mode regardless of the presence or the absence of helium in every case, so that any symptom of intergranular separation induced by helium was not appreciated at all. These results reveal that this class of materials may preserve its superior resistance against high temperature helium embrittlement during long time operation in fusion devices.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 81, Issues 8–14, February 2006, Pages 1085–1090
نویسندگان
, , ,