FERNANDA MARTINS QUEIROZ
2 resultados
Resultados de Busca
Agora exibindo 1 - 2 de 2
Artigo IPEN-doc 24726 On the AA2198-T851 alloy microstructure and its correlation with localized corrosion behaviour2018 - DONATUS, UYIME; TERADA, MAYSA; OSPINA, CARLOS R.; QUEIROZ, FERNANDA M.; BUGARIN, ALINE F.S.; COSTA, ISOLDAThe corrosion behaviour of AA2198-T851 alloy has been investigated using a combination of immersion tests and different microscopy techniques. Results showed that severe localized corrosion initiated within 1 h of corrosion immersion test in 0.01 mol L−1 NaCl solution. The corrosion mechanism in this alloy is intragranular and it propagates crystallographically. The propagation occurs through grain orientation dependent bands and it can be likened to the movement of dislocation through slip planes. Corrosion rings around stable pits result from pH variations. Secondary pits form around primary pits within corrosion rings and are preceded by hydrogen evolution.Artigo IPEN-doc 22402 Electrochemical and chemical characterization of electrodeposited zinc surface exposed to new surface tratments2016 - FERREIRA JUNIOR, J.M.; SOUZA, K.P.; QUEIROZ, F.M.; COSTA, I.; TOMACHUK, C.R.