Communication Dans Un Congrès Année : 1999

Effect of sulfur on the deformation mechanisms of zirconium alloy at intermediate temperatures (25-400°C)

Résumé

Cezus, France, recently showed that a small addition of sulfur in a-zirconium and its alloys could reduce steady state creep-rate by three at 400°C under a 130MPa applied stress. Sulfur surely acts directly on the deformation controlling mechanisms. But these medium temperature deformation mechanisms are still not well understood. The present study aims both at the understanding of sulfur effect and at the determination of the controlling mechanisms in this temperature range. The work is conducted on ZrNbwt 1% and on azirconium samples containing different sulfur concentrations. The study consists in a comparative analysis of these materials at three different scales : global macroscopic scale, SEM scale and TEM scale.

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hal-00116554 , version 1 (01-11-2022)

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  • HAL Id : hal-00116554 , version 1

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Franck Ferrer, Alain Barbu, Thierry Bretheau, Jérôme Crépin. Effect of sulfur on the deformation mechanisms of zirconium alloy at intermediate temperatures (25-400°C). 15th International Conference on Structural Mechanics in Reactor Technology (SMiRT-15), Aug 1999, Séoul, South Korea. pp.469-476. ⟨hal-00116554⟩
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