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This work has objective to correlate the intergranular corrosion susceptibility test named EPR-DL (Electrochemical\udPotentiokinetic Reactivation of Double Loop) with the sigma phase formation and other phases. It has been used samples\udfrom a UNS S32760 steel pipe for conducting various aging heat treatments. Held isothermal heat treatment at 850°C\udfor 1 min, 10 min, 30 min, 1 h, 1h30min and 10 h. Each heat treated sample and as received were tested using the\udelectrochemical polarization reactivation of double loop technique (EPR-DL). It was possible the detection of deleterious\udphases with DL-EPR portable cell. The EPR-DL test of some samples showed a second peak of reactivation in which the\udresults showed that this peak might be associated with ferrite or be related to the presence of chi phas

UTILIZAÇÃO DO EQUIPAMENTO DE ENSAIO EPR-DL DE CAMPO NA DETECÇÃO DE FASE SIGMA