کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9825450 | 1521788 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Metallurgical study on electro-magnetic flow meter and pump for liquid lead-bismuth flow
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Corrosion and precipitation of corrosion products at an electrode of an electro-magnetic flow meter and in a narrow channel of an electro-magnetic pump (EMP) for lead bismuth (Pb-Bi) flow was investigated by means of metallurgical analysis. The roughened surface of inlet pump core at the entrance of EMP flow channel was observed, which indicated the occurrence of the so-called corrosion/erosion. In the same time, corrosion products were precipitated on the surface of the electrode and the outlet pump core. Localized corrosion/erosion and precipitation of corrosion products were observed by means of SEM/EDX analysis for their cross sections. The surface condition was different from each other depending on the place. The precipitation products were made of double-layers, that is, an outer layer and an inner layer. The inner layer (diameter range of 0-20 μm) contained Fe in the fraction of 99wt%, and the outer layer (diameter range of 20-40 μm) contained Pb-Bi in the fraction of 10wt%. The double layer structure might be caused by difference of precipitation period. These lumps of the precipitation products could be the cause of the channel plugging.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Nuclear Energy - Volume 47, Issues 1â4, 2005, Pages 639-647
Journal: Progress in Nuclear Energy - Volume 47, Issues 1â4, 2005, Pages 639-647
نویسندگان
Masatoshi Kondo, Minoru Takahashi,