Einfluss von nichtmetallischen Einschlüssen und Ausscheidungen auf die Korrosionsbeständigkeit hoch legierter CrMnN-Austenite

Translated title of the contribution: Influence of nonmetallic inclusions and precipitates on the corrosion resistance of high alloyed CrMnN austenitic stainless steels

Martin Wöls

Research output: ThesisMaster's Thesis

Abstract

High-nitrogen austenitic stainless steels show excellent material properties, for example a good combination of strength and ductility as well as corrosion resistance and biocompatibility. In order to obtain a fully austenitic microstructure it is possible to replace the expensive alloy nickel with nitrogen. The corrosion properties of three different CrMnN-alloys were analysed and compared in the present research. One steel was produced using the conventional process, while the other two were manufactured with PESR (Pressure Electro Slag Remelting). The basics and the corrosion mechanisms are discussed and summarized in the literature review. The methodology of the experimental procedure and the results are described and documented in the practical part. The influences and consequences of microstructure, cleanliness and precipitations on corrosion resistance were examined. A clear influence of the manufacturing process on corrosion properties can be observed.
Translated title of the contributionInfluence of nonmetallic inclusions and precipitates on the corrosion resistance of high alloyed CrMnN austenitic stainless steels
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Eglsäer, Sabine, Supervisor (external), External person
  • Bernhard, Christian, Supervisor (internal)
  • Michelic, Susanne Katharina, Co-Supervisor (internal)
Award date25 Jun 2010
Publication statusPublished - 2010

Bibliographical note

embargoed until null

Keywords

  • non metallic inclusions precipitates austenitic stainless steels pitting corrosion

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