TY - JOUR A1 - Rosemann, Paul A1 - Müller, Christina A1 - Meyer, A. A1 - Halle, T. T1 - Influence of nitrogen on the corrosion resistance of martensitic stainless steels JF - IOP Conf. Series: Materials Science and Engineering N2 - The corrosion resistance of martensitic stainless steels (MSS) depends strongly on the chemical composition and the applied heat treatment. Both determines the distribution of the alloying elements in the microstructure and the resulting material properties. The addition of nitrogen is known to be beneficial for the pitting corrosion resistance of stainless steels. In case of MSS this effect is not only connected to nitrogen itself because nitrogen can be used to substitute carbon which also influences the result of the heat treatment process. This paper shows the effect of nitrogen on the corrosion resistance in relation to the hardening process of MSS. Therefore the effects of austenitization duration, austenitization temperature and cooling rate on microstructure, hardness and corrosion resistance were studied on the MSS X30CrMoN15 1 and X50CrMoV15. The effect of different cooling rates was studied in the range of > 100 K/s down to 1 K/s using the jominy end quench test. The changes in corrosion resistance were detected with electrochemical potentiodynamic reactivation (EPR) and by the determination of critical pitting potentials. Besides this experimental approach thermodynamic calculations with the software thermocalc will be presented and used for the interpretation of the effect of nitrogen on the corrosion resistance of MSS. T2 - 18th Chemnitz Seminar on Materials Engineering – 18. Werkstofftechnisches Kolloquium CY - Chemnitz, Germany KW - Martensitic stainless steels KW - Corrosion resistance KW - Heat treatment PY - 2016 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-366956 DO - https://doi.org/10.1088/1757-899X/118/1/011002 VL - 118 IS - 1 SP - 19 EP - 19 PB - IOP Publishing AN - OPUS4-36695 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -