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Decomposition kinetics of expanded austenite with high nitrogen contents

  • Thomas Christiansen und Marcel A. J. Somers EMAIL logo
Veröffentlicht/Copyright: 7. Januar 2022
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Abstract

This paper addresses the decomposition kinetics of synthesized homogeneous expanded austenite formed by gaseous nitriding of stainless steel AISI 304L and AISI 316L with nitrogen contents up to 38 at.% nitrogen. Isochronal annealing experiments were carried out in both inert (N2) and reducing (H2) atmospheres. Differential thermal analysis (DTA) and thermogravimetry were applied for identification of the decomposition reactions and X-ray diffraction analysis was applied for phase analysis. CrN precipitated upon annealing; the activation energies are 187 kJ/mol and 128 kJ/mol for AISI 316L and AISI 304L, respectively. Isothermal stability plots for expanded austenite developed from AISI 304L and AISI 316 were obtained.


Professor Marcel A. J. Somers Technical University of Denmark (DTU) Kemitorvet building 204, DK-2800 Kgs. Lyngby Tel.: +45 45 25 22 50 Fax: +45 45 93 62 13

  1. Financial support by the Danish Research Agency under grant 26-01-0079 is gratefully acknowledged. The authors would like to thank Kristian V. Dahl for providing Thermo-Calc calculations and Finn T. Petersen (Sandvik) for providing stainless steel thin foil material.

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Received: 2005-07-01
Accepted: 2005-09-05
Published Online: 2022-01-07

© 2006 Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Frontmatter
  2. Editorial
  3. The Pd-rich part of the Pd–B phase diagram
  4. Thermodynamic optimizing of the Li–Sn system
  5. Thermodynamic analysis of high-temperature heazlewoodite
  6. Diffusion of chromium in β-Ti under high pressure
  7. Density and surface tension of liquid ternary Ni–Cu–Fe alloys
  8. Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
  9. Development of cube recrystallization textures in high-purity Al
  10. Formation of cube recrystallized grains in high-purity Al
  11. Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
  12. The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
  13. Kinetics studies of hydrogen reduction of Cu2O
  14. Decomposition kinetics of expanded austenite with high nitrogen contents
  15. Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
  16. Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
  17. Richtlinien für Autoren
  18. Instructions for authors
  19. Personal/ personelles
  20. Press/ Presse
  21. Conferences /Konferenzen
  22. Frontmatter
  23. Editorial
  24. Editorial
  25. Articles Basic
  26. The Pd-rich part of the Pd–B phase diagram
  27. Thermodynamic optimizing of the Li–Sn system
  28. Thermodynamic analysis of high-temperature heazlewoodite
  29. Diffusion of chromium in β-Ti under high pressure
  30. Density and surface tension of liquid ternary Ni–Cu–Fe alloys
  31. Influence of electric field strength applied during the solution heat treatment of the Al–Mg–Si–Cu Alloy AA6111
  32. Articles Applied
  33. Development of cube recrystallization textures in high-purity Al
  34. Formation of cube recrystallized grains in high-purity Al
  35. Effect of various niobium additions on microstructure and mechanical behavior of a NiAl–Cr–Mo eutectic alloy
  36. The effect of exposure to elevated temperatures on the microstructure and hardness of Mg–Ca–Zn alloy
  37. Kinetics studies of hydrogen reduction of Cu2O
  38. Decomposition kinetics of expanded austenite with high nitrogen contents
  39. Estimation of the viscosity for Ag–In and In–Sb liquid alloys using different models
  40. Elevated temperature tensile properties of an extruded aluminium alloy reinforced with SiCp
  41. Notifications/Mitteilungen
  42. Richtlinien für Autoren
  43. Instructions for authors
  44. Personal/ personelles
  45. Press/ Presse
  46. Conferences /Konferenzen
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