Residual stresses in oxide layers and corrosion kinetics of Zr-based alloys

Galina Gosmanova; Ivo Kraus; Nikolaj Ganev

doi:10.1117/12.517960

10 October 2003 Residual stresses in oxide layers and corrosion kinetics of Zr-based alloys

Galina Gosmanova, Ivo Kraus, Nikolaj Ganev

Proceedings Volume 5127, Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering; (2003) https://doi.org/10.1117/12.517960
Event: Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, 2002, St. Petersburg, Russian Federation

Abstract

The results of x-ray diffraction analysis of macroscopic stresses in oxide layers and substrate of zirconium alloys are presented in this contribution. Stresses were studied on the tubular specimens of two types of alloys: low tin Zircaloy-4 (Zry-4W) and standard Zircaloy (Zry-4S) which were simultaneously exposed for various time in water with 43 pm O₂ at 360°C. Microstructure characteristics (crystalline size and lattice strains) were evaluated for oxide layers and the metal underlying. Only compressive stresses (up to 1,1 GPz) were determiend in the oxide layers of samples investigated. Only tensile stresses (up to 250 MPa) were determined in metal underlying for all the specimens investigated. The relation between the stress development in oxide layers and kinetics of the alloys investigated was outlined.

Citation Download Citation

Galina Gosmanova, Ivo Kraus, and Nikolaj Ganev "Residual stresses in oxide layers and corrosion kinetics of Zr-based alloys", Proc. SPIE 5127, Sixth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (10 October 2003); https://doi.org/10.1117/12.517960

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