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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rosemann, Paul
Leipzig University of Applied Sciences
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2022Microstructure‐dependent crevice corrosion damage of implant materials <scp>CoCr28Mo6</scp>, <scp>TiAl6V4</scp> and <scp>REX</scp> 734 under severe inflammatory conditionscitations
- 2022Material-property correlations for a high-alloy special steelcitations
- 2021Application limits and sensitisation behaviour of the manganese‐ and nitrogen‐alloyed austenitic stainless steel P2000 (X13CrMnMoN18‐14‐3)citations
- 2020Sensitization behaviour of the nitrogen alloyed austenitic stainless steel X8CrMnMoN18-19-2citations
- 2020Microstructure and surface investigations of TiAl6V4 and CoCr28Mo6 orthopaedic femoral stemscitations
- 2020Quantitative evaluation of global and local chromium contents with the EPR test on ferritic and martensitic stainless steelscitations
- 2020Improvement of the martensitic stainless steel X46Cr13 by Q&P heat treatmentcitations
- 2020KorroPad testing - applications from industry and researchcitations
- 2019Detection of sensitisation on aged lean duplex stainless steel with different electrochemical methodscitations
- 2019Correlative Microscopy – Color Etching vs. Electron Backscatter Diffraction: Application Potenials and Limitationscitations
- 2018Reversed austenite for enhancing ductility of martensitic stainless steelcitations
- 2018Age-hardening behaviour, microstructure and corrosion resistance of the copper alloyed stainless steel 1.4542citations
- 2018Age-hardening behaviour, microstructure and corrosion resistance of the copper alloyed stainless steel 1.4542
- 2018Visualization of material-related susceptibility to pitting corrosion with the “KorroPad” indicator test
- 2018Precipitation behavior and corrosion resistance of nickel-free, high-nitrogen austenitic stainless steels
- 2018Heat treatment and corrosion resistance of cutlery
- 2018Influence of the post-weld surface treatment on the corrosion resistance of the duplex stainless steel 1.4062
- 2018How to Detect Sensitivity on Aged Lean-Duplex Stainless Steel With Electrochemical Methods
- 2018SD effect in martensitic stainless steel under Q&P heat treatment condition
- 2018Influence of austenitizing and tempering on the corrosion behavior and sensitization of martensitic stainless steel X50CrMoV15citations
- 2017Reversed austenite for enhancing ductility of martensitic stainless steelcitations
- 2017Influence of the post-weld surface treatment on the corrosion resistance of the duplex stainless steel 1.4062citations
- 2017Influence of the post-weld surface treatment on the corrosion resistance of duplex stainless steel 1.4062
- 2016Influence of nitrogen on the corrosion resistance of martensitic stainless steelscitations
- 2015Influence of solution annealing temperature and cooling medium on microstructure, hardness and corrosion resistance of martensitic stainless steel X46Cr13citations
- 2014Examination of the influence of heat treatment on the corrosion resistance of martensitic stainless steelscitations
- 2013Influence of microstructure and surface treatment on the corrosion resistance of martensitic stainless steels 1.4116, 1.4034, and 1.4021citations
Places of action
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article
Sensitization behaviour of the nitrogen alloyed austenitic stainless steel X8CrMnMoN18-19-2
Abstract
<jats:title>Abstract</jats:title><jats:p>Austenitic stainless steels have been used in many different industrial branches. Nitrogen alloyed austenite´s with up to 20 wt. % manganese and 0.8 wt. % nitrogen have been available on the market as nickel-free grade for some years. In these steels, the austenitic matrix is stabilized without the addition of nickel, while the corrosive resistance and mechanical properties are significantly improved by addition of Mn and N. As with all stainless steels, the chemical composition and heat treatment have a decisive influence on structure, mechanical properties and corrosion resistance. Solution annealing, quenching and work hardening are applied to combine excellent mechanical properties (R<jats:sub>m</jats:sub> from 900 MPa to 2,000 MPa, A<jats:sub>5</jats:sub> > 50 %, A<jats:sub>v</jats:sub> > 350 J) with high corrosion resistance. Solution annealing is applied to eliminate undesired precipitation phases (Cr<jats:sub>2</jats:sub>N, M<jats:sub>23</jats:sub>C<jats:sub>6</jats:sub> and sigma phase), distribute the alloy elements homogeneously in the austenite and assure the high corrosion resistance. If the distribution of the alloy elements (Cr, Mo and N) is impaired by suboptimal heat treatment, processing or high temperature conditions, the corrosion resistance can be reduced. Precise knowledge of the sensitization behaviour of these high nitrogen alloyed steels is necessary. Therefore, the sensitization behaviour of the nitrogen alloyed austenitic steel X8CrMnMoN18-19-2 (1.4456) was investigated by thermal ageing in the temperature rage of 500 °C to 900 °C for up to 100 h. Thermodynamic calculations were used to predict the formation of different phases. The microstructure of the various sensitization states was evaluated by scanning electron microscopy (SEM) and compared with the corrosion resistance characterized by the electrochemical potentiodynamic reactivation (EPR) test and the KorroPad method. The reduction of corrosion resistance is correlated with the occurrence of M<jats:sub>2</jats:sub>N nitrides in the microstructure and two sensitization diagrams were created based on the experimental results.</jats:p>