Crud Behaviors in High Temperature Water, (II) : Characterization of Corrosion Layer on Type 304 Stainless Steel and Zircaloy-2
スポンサーリンク
概要
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Sample specimens of type 304 stainless steel and Zircaloy-2 were exposed to the OWL-1 loop water at 280°C for 23 d. After the exposure, a number of crystallites are distributed either separately or sometimes in agglomerate on the surfaces. The X-ray diffraction analysis and XMA analysis of the type 304 stainless steel surface revealed that more than 95% of the crystallites have a M<SUB>2</SUB>O<SUB>3</SUB>-type of structure, and some are enriched in Cr. In the subsequent radiochemical analysis of the fractions detached by the various cleaning processes (ultrasonic, electrostripping and electropolishing), it is noticed that the <SUP>60</SUP>Co/Co ratio de-creases with the depth of the corrosion layer from the value close to that of insoluble crud in the water (crud-P) to that of soluble crud (crud-F).
著者
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YAMAMOTO Katsumune
Oarai Research Establishment, Japan Atomic Energy Research Institute
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HOSHI Michio
Tokai Research Establishment, Japan Atomic Energy Research Institute
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TACHIKAWA Enzo
Tokai Research Establishment, Japan Atomic Energy Research Institute
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SUWA Takeshi
Tokai Research Establishment, Japan Atomic Energy Research Institute
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SAGAWA Chiaki
Tokai Research Establishment, Japan Atomic Energy Research Institute
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YONEZAWA Chushiro
Tokai Research Establishment, Japan Atomic Energy Research Institute
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TOMITA Mamoru
Oarai Research Establishment, Japan Atomic Energy Research Institute
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SHIMIZU Michio
Oarai Research Establishment, Japan Atomic Energy Research Institute
関連論文
- Crud Behaviors in High Temperature Water, (II) : Characterization of Corrosion Layer on Type 304 Stainless Steel and Zircaloy-2
- Residence time of crud on surfaces of channel box in JPDR.
- Crud behaviors in high-temperature water, (I). Characterization of water in JMTR OWL-1 loop.
- Crud behaviors in high-temperature water. (III) Chemical form of cobalt-60 in JMTR OWL-1 loop water.