info:eu-repo/semantics/article
Effect of temperature on the stress corrosion cracking of zircaloy-4 in iodine alcoholic solutions
Fecha
2007-07Registro en:
Gomez Sanchez, Andrea Valeria; Farina, Silvia Beatriz; Duffó, Gustavo Sergio; Effect of temperature on the stress corrosion cracking of zircaloy-4 in iodine alcoholic solutions; Pergamon-Elsevier Science Ltd; Corrosion Science; 49; 7; 7-2007; 3112-3117
0010-938X
CONICET Digital
CONICET
Autor
Gomez Sanchez, Andrea Valeria
Farina, Silvia Beatriz
Duffó, Gustavo Sergio
Resumen
Zircaloy-4 is susceptible to stress corrosion cracking (SCC) in solutions of iodine dissolved in different alcohols (methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol and 1-octanol). The crack propagation rate is known to decrease as the solvent molecular weight increases, as a consequence of steric hindrance. However, the mechanism that operates during SCC is still unknown. In the present work the effect of temperature on SCC susceptibility was evaluated in 1-butanol and 1-pentanol iodine containing solutions. The dependence of the crack growth rate with temperature follows an Arrhenius law, and the activation energy obtained from experimental data is consistent with a process controlled by volume diffusion of the active species (the iodine-alcohol complex) to the crack tip.