Goel S.Bojinov M.Capek J.Saario T.Polatidis E.Kantonen T.Salminen A.Blankenburg M.Ganvir A.Que Z.2024-09-022024-09-022024-09-022024-09-022024-10-010010-938X10.1016/j.corsci.2024.112410SCOPUS_ID:85201863322https://rlib.uctm.edu/handle/123456789/1468The paper presents a comprehensive investigation of electrochemical behavior of laser powder bed fusion (PBF-LB/M) nickel-free stainless steels in high-temperature water. The PBF-LB/M nickel-free steels processed with various laser parameters and heat treatments exhibit tunable microstructures. Electrochemical impedance spectroscopy (EIS) indicates a 2–3 times lower oxidation rate for the nickel-free steels compared to wrought 316 L. The outer layer crystallites on nickel-free steels are close to pure Fe oxides. The significantly lower concentration of Ni in the inner oxide and at the alloy/oxide interface account for the important variations of the parameters of water reduction/hydrogen oxidation reactions than wrought 316 L.enArticle