Calderon-Hernandez J.W.Hincapie-Ladino D.Filho E.B.M.Magnabosco R.Alonso-Falleiros N.2019-08-202019-08-202017CALDERÓN-HERNÁNDEZ, JOSÉ; HINCAPÍE-LADINO, DUBERNEY; BENEDITO MARTINS FILHO, EDSON; Magnabosco, Rodrigo; FALLEIROS, NEUSA. Relation between pitting potential, degree of sensitization and reversed austenite in a supermartensitic stainless steel. CORROSION, v. 73, p. 953-960, 2017.0010-9312https://repositorio.fei.edu.br/handle/FEI/2290© 2017, NACE InternationalPitting potential (Ep) and degree of sensitization (DOS) of a supermartensitic stainless steel (SMSS) were determined on specimens heat-treated at different tempering temperatures (550°C, 575°C, 600°C, 625°C, 650°C, or 700°C). The effect of pH (pH 6 and pH 8) on the Ep obtained in a 3.5 wt% NaCl solution, as well as the correlation between Ep and DOS obtained in 0.5 M H2SO4 + 0.01 M KSCN solution, was studied. The results showed correlation between Ep and DOS values, the samples with the higher DOS values being the ones with the lower Ep. A mechanism was proposed that would explain the correlation of the presence of reversed austenite formed during tempering, Ep, and DOS.Acesso RestritoArtigo10.5006/2311AusteniteMartensitePH changes and effectsPitting potentialSensitizationSupermartensitic stainless steel