Growth Model of Circumferential Outer Diameter Stress Corrosion Crack in Retired Steam Generator Tube of Kori 1 Nuclear Power Plant

Dong Jin Kim; Hong Pyo Kim; Joung Soo Kim; Yun Soo Lim; Seong Sik Hwang

doi:10.4028/www.scientific.net/SSP.124-126.1529

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HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126Growth Model of Circumferential Outer Diameter...

Growth Model of Circumferential Outer Diameter Stress Corrosion Crack in Retired Steam Generator Tube of Kori 1 Nuclear Power Plant

Abstract:

Growth model of a circumferential outer diameter stress corrosion crack (ODSCC) in a retired steam generator tube of the Kori 1 nuclear power plant was proposed based on extensive destructive examinations of the pulled tubes of Alloy 600 from the Kori 1 plant. A small ODSCC grows in a lateral direction as well as a forward direction until it meets a neighboring ODSCC which also grows in a lateral direction as well as a forward direction. And then, the two ODSCCs which meet on the same circumferential plane are consolidated into a single ODSCC. By repeating such a consolidation process with time, it seems that the apparent growth rate of an ODSCC in the lateral direction is much faster than that in the forward direction. Growth model of a circumferential ODSCC from a retired steam generator tube of the Kori 1 plant reveals that many ODSCCs are initiated and grow in both directions independently until they meet and finally they are consolidated.

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Periodical:

Solid State Phenomena (Volumes 124-126)

Pages:

1529-1532

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.1529

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Online since:

June 2007

Authors:

Dong Jin Kim, Hong Pyo Kim, Joung Soo Kim, Yun Soo Lim, Seong Sik Hwang

Keywords:

Aluminium Alloy, Mechanical Property, Melt-Spinning, Microstructure, Spray Forming

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References

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DOI: 10.1115/1.3264220

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00. 0.

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8 Aspect ratio Crack length(mm).

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