کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8084997 1521751 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Positron annihilation lifetime study of JRQ and JPA irradiated and annealed reactor pressure vessel steels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Positron annihilation lifetime study of JRQ and JPA irradiated and annealed reactor pressure vessel steels
چکیده انگلیسی
The model reactor pressure vessel steels known as JRQ and JPA were manufactured in Japan for the IAEA neutron embrittlement research studies. These model alloys belong to the commercially used steel A533B-1 type and show relatively large changes in mechanical properties after relevant neutron irradiation. The neutron irradiation was performed by different neutron fluxes as well as different neutron fluences (up to about 150 × 1018 cm−2 (E > 0.5 MeV)). For a better understanding of the neutron embrittlement, the Positron Annihilation Lifetime Spectroscopy (PALS) technique was applied in 2014. PALS measurement of irradiated specimens was performed using three detectors set-up due to induced 60Co radioactivity of the studied specimens. We confirmed that the JPA steel, considered to be high-copper steel, is much more sensitive to defect creation due to neutron irradiation than the low-copper JRQ steel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Nuclear Energy - Volume 87, March 2016, Pages 15-19
نویسندگان
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