A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Corrosion behavior of laser powder bed fusion manufactured nickel-free stainless steels in high-temperature water
Tekijät: Goel, Sneha; Bojinov, Martin; Capek, Jan; Saario, Timo; Polatidis, Efthymios; Kantonen, Tuomas; Salminen, Antti; Blankenburg, Malte; Ganvir, Ashish; Que, Zaiqing
Kustantaja: Elsevier Ltd
Julkaisuvuosi: 2024
Journal: Corrosion Science
Tietokannassa oleva lehden nimi: Corrosion Science
Artikkelin numero: 112410
Vuosikerta: 239
eISSN: 1879-0496
DOI: https://doi.org/10.1016/j.corsci.2024.112410
Verkko-osoite: https://doi.org/10.1016/j.corsci.2024.112410
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/457769728
The 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.
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