Propagation of stress corrosion cracks in Zr-1% Nb claddings

Propagation of stress corrosion cracks in Zr-1% Nb claddings

Experimental results on iodine induced stress corrosion cracking (SCC) are analyzed. The studies were performed at 350°C using Zr-1% Nb tubular specimens. Fatigue crack at internal surface served as an initial defect. The relationship was derived between crack propagation rate and stress intensity f...

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Veröffentlicht in:Journal of nuclear materials 1995-09, Vol.224 (3), p.307-310
Hauptverfasser: Bibilashvily, Yu.K., Dolgov, Yu.N., Nesterov, B.I., Novikov, V.V.
Format: Artikel
Sprache:eng
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Zusammenfassung:Experimental results on iodine induced stress corrosion cracking (SCC) are analyzed. The studies were performed at 350°C using Zr-1% Nb tubular specimens. Fatigue crack at internal surface served as an initial defect. The relationship was derived between crack propagation rate and stress intensity factor; the threshold stress intensity factor of 4.8 MPa m 1 2 was determined.
ISSN:0022-3115
1873-4820
DOI:10.1016/0022-3115(95)00114-X