CIDCA   05380
CENTRO DE INVESTIGACION Y DESARROLLO EN CRIOTECNOLOGIA DE ALIMENTOS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Corrosion of Conductor Rolls in the Electrogalvanizing Line at Ternium Siderar
Autor/es:
WALTER EGLI; PABLO SERÉ; LEANDRO BENGOA; FLORENCIA VERSINO; SONIA BRUNO; ANDRES LAZZARINO; FERNANDO ESPÓSITO
Lugar:
Beijing
Reunión:
Congreso; GALVATECH 2013 & APGALVA 2013; 2013
Institución organizadora:
The Chinese Society for Metals (CSM)
Resumen:
Conductor rolls in the electrogalvanizing line are made of Duplex Stainless Steel (DSS) and after some time
in service they suffer surface deterioration leading to surface defects and rejections in high quality products. Repassivation
kinetics and susceptibility to pitting corrosion for the austenitic and ferritic phases were studied. An electrochemical
treatment that reproduces the actual industrial corrosive situation was applied to test different alloys in the laboratory.
The Hastelloy C22 showed the best performance and was evaluated in the line during a complete production batch. The
new roll presented a slight deterioration, much lower than the DSS rolls.