| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1568884 | Journal of Nuclear Materials | 2008 | 4 Pages |
Abstract
Reanalysis of the DHC initiation temperature, Tc and the crack propagation rate, Vp of CANDU and RBMK Zr-2.5Nb tubes, recently published by Cirimello et al., was conducted, using Kim's DHC model. It is shown that a negative temperature dependency of Vp at above T(max Vp) for both Zr-2.5Nb tubes is due to a decreased hydrogen supersaturation below ÎCmin over which Vp becomes independent of hydrogen concentrations. When compared to more than 200 data of Vp for the same Zr-2.5Nb tubes collected through the IAEA round robin tests, it is concluded that the temperature dependencies of their Vp which the authors determined using a single specimens are faulty.
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Nuclear Energy and Engineering
Authors
Young S. Kim,