Corrosion Behavior Influenced by Quenching Conditiones of HTGN Martensitic Stainless Steel

Marlies Borchert, Gregor Mori, E. Kozeschnik, E. Povoden-Karadeniz, Michael Bischof, Alexander Tomandl

Research output: Contribution to conferencePresentationResearchpeer-review


High temperature gas nitriding (HTGN) has a large impact on enhancing the corrosion behavior of martensitic stainless steels. The variation in nitriding time was investigated with respect to microstructure, surface hardness (nanoindentation), alloying element content near the surface (GDOS) and pitting corrosion resistance. The study shows that quenching in 10 bar nitrogen enhances the nitrogen content near the surface. Samples heat treated without any nitrogen addition though quenched in nitrogen, exibits an improvement of corrosion resistance. Furthermore the hardness increases too, compared to a non heat treated sample. Specimens quenched in helium also display an enhancement of the pitting corrosion resistance, however the hardness increases lesser. Simulations are supporting this assertions.
Original languageEnglish
Publication statusPublished - 28 Sept 2016
Event24. Internationale Conference on Materials and Technology - Kongress Center GH Bernardin, Portoroz, Slovenia
Duration: 28 Sept 201630 Sept 2016


Conference24. Internationale Conference on Materials and Technology

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