The Mechanism of Localized In-pile Corrosion of Zirconium Alloys

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概要

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• The role of β-particles for the localized in-pile corrosion of components made of zirconium alloys, such as fuel channels closely facing stainless steel components, has been discussed and the distribution of β-particles near fuel channels has been evaluated using a multi-layer calculation method.<BR>It is shown that electric charges which come from β-particles produced mainly by the Compton effect, but not by β-emitting radionuclides, make electric fields in and on the zirconium oxide surfaces in the reactor by a model analogous to an electric circuit, and that these electric fields induced by β-particles could be essential for the understanding of localized in-pile corrosion of zirconium alloys. The mechanism of the localized in-pile corrosion of zirconium alloys adjacent to other welded alloys is also discussed as an enhanced corrosion by electric potentials using the proposed electric circuit model in detail.

• 社団法人 日本原子力学会の論文
• 1998-09-25

著者

• Ozaki Satoru

  Nuclear Engineering Laboratory Toshiba Corporation

• Ozaki S

  Toshiba Corp.

関連論文

• The Mechanism of Localized In-pile Corrosion of Zirconium Alloys, II)
• The Mechanism of Localized In-pile Corrosion of Zirconium Alloys
• The Mechanism of Localized In-pile Corrosion of Zirconium Alloys, (III)

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