1. Engineering School of São Carlos, Materials Science and Engineering Department, University of São Paulo, Av. João Dagnone, 1100 Jd Sta Angelina, São Carlos 13563-120, SP, Brazil
2. Munir Rachid Corrosion Laboratory, Federal University of São Carlos, Rodovia Washington Luis Km 235, São Carlos 13565-905, SP, Brazil
3. Campus Santo Antônio, Mechanical and Production Engineering Department, Federal University of São João del-Rei, Praça Frei Orlando, 170—Centro, São João del Rei 36307-334, MG, Brazil