Startseite Precipitation behaviour of an Fe–Co–Mo-alloy during non-isothermal ageing
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Precipitation behaviour of an Fe–Co–Mo-alloy during non-isothermal ageing

  • H. Leitner , M. Schober , H. Clemens , D. Caliskanoglu und F. Danoix
Veröffentlicht/Copyright: 11. Juni 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 99 Heft 4

Abstract

Fe – Co – Mo alloys show hardening behaviour comparable to that of precipitation hardened Al-alloys, which is characterised by a low hardness after solution annealing and a significant increase in the hardness during subsequent ageing at higher temperatures. In this study, the precipitation behaviour of Fe-25% Co-15% Mo (wt.%) has been studied applying non-isothermal ageing. High sensitivity differential scanning calorimetry and atom probe tomography have been used to characterise the precipitation sequence. Three overlapping exothermic reactions, which are related to precipitation reactions, are observed in the temperature range of 400 to 700°C. The investigations have shown that precipitation starts with diffusion of Mo, followed by the formation of the intermetallic μ-phase which reaches its equilibrium composition at a temperature of about 615°C.

Keywords: Differential scanning calorimetry; Three-dimensional atom probe; Precipitation behaviour
* Correspondence address, Dr. Harald Leitner, Department of Physical Metallurgy and Materials Testing, University of Leoben, Franz-Josef-Straße 18, A-8700 Leoben, Austria, Tel.: +43 3842 402 4217, Fax: +43 3842 402 4202, E-mail:

References

[1] W.Köster, W.Tonn: Archiv für das Eisenhüttenwesen12 (1932) 627.Suche in Google Scholar

[2] J.A.Geller: Instrumentalniye Staly. Verlag Metallurgia, Moskau (1983).Suche in Google Scholar

[3] M.I.Karpov: Proc. Powder Metall. World Congress, Granada (1998) 519.Suche in Google Scholar

[4] E.Houdremont: Handbuch der Sonderstahlkunde Band 2, Verlag Stahleisen, Düsseldorf (1956).10.1007/978-3-662-11973-0Suche in Google Scholar

[5] M.Hansen: Constitution of binary alloys, McGraw-Hill, New York (1958).Suche in Google Scholar

[6] M.K.Miller, A.Cerezo, M.G.Hetherington, G.D.W.Smith: Atom Probe Field Ion Microscopy, Clarendon Press, Oxford, 1996.Suche in Google Scholar

[7] E.Bèmont, A.Bostel, M.Bouet, G.Da Costa, S.Chambreland, B.Deconihout, K.Hono: Ultramicroscopy95 (2003) 231.10.1016/S0304-3991(02)00321-2Suche in Google Scholar

[8] S.Erlach, F.Danoix, D.Lemarchand, H.Leitner, H.Clemens: Surf. Int. Anal.39 (2007) 213.10.1002/sia.2517Suche in Google Scholar

[9] M.Thuvander, H.O.Andren, K.Stiller, Q.H.Hu: Ultramicroscopy73 (1998) 279.10.1016/S0304-3991(97)00168-XSuche in Google Scholar

[10] A.Heinrich, T.Al Kassab, R.Kirchheim: Mater. Sci. Eng. A353 (2003) 92.10.1016/S0921-5093(02)00673-1Suche in Google Scholar

Received: 2007-10-25
Accepted: 2008-1-21
Published Online: 2013-06-11
Published in Print: 2008-04-01

© 2008, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Horst Cerjak – Emeritus Professor
  5. Review
  6. Calculation of crystallographic texture due to displacive transformations
  7. Basic
  8. Ferrite transformation from oxide–steel interface in HAZ-simulated C–Mn steel
  9. Influence of metastable tetragonal ZrO2-reinforcements on the properties of MoSi2-composites
  10. Joining strategies for open-porous metallic foams
  11. Precipitation behaviour of an Fe–Co–Mo-alloy during non-isothermal ageing
  12. Characterization of δ-phase in superalloy Allvac 718PlusTM
  13. Direct observation of phase transformations in the simulated heat-affected zone of a 9Cr martensitic steel
  14. Effect of boron on creep deformation behavior and microstructure evolution in 9% Cr steel at 650°C
  15. Effect of stress on the creep deformation of ASME Grade P92/T92 steels
  16. Applied
  17. Assessment of creep rupture life of weldments of martensitic steels
  18. Computational analysis of the precipitation kinetics in a complex tool steel
  19. Predicted precipitate back-stress and creep rupture strength of the advanced 9–12% Cr steel COST E2
  20. Compositional characterisation and thermodynamic modelling of nitride precipitates in a 12% Cr steel
  21. The L2 norm of the deviation between the measured and computed transient displacement field in a test weld
  22. Toward reliable calculations of heat and plastic flow during friction stir welding of Ti-6Al-4V alloy
  23. Notifications
  24. DGM News
https://doi.org/10.3139/146.101647
Schlagwörter für diesen Artikel
Differential scanning calorimetry; Three-dimensional atom probe; Precipitation behaviour

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Editorial
  4. Horst Cerjak – Emeritus Professor
  5. Review
  6. Calculation of crystallographic texture due to displacive transformations
  7. Basic
  8. Ferrite transformation from oxide–steel interface in HAZ-simulated C–Mn steel
  9. Influence of metastable tetragonal ZrO2-reinforcements on the properties of MoSi2-composites
  10. Joining strategies for open-porous metallic foams
  11. Precipitation behaviour of an Fe–Co–Mo-alloy during non-isothermal ageing
  12. Characterization of δ-phase in superalloy Allvac 718PlusTM
  13. Direct observation of phase transformations in the simulated heat-affected zone of a 9Cr martensitic steel
  14. Effect of boron on creep deformation behavior and microstructure evolution in 9% Cr steel at 650°C
  15. Effect of stress on the creep deformation of ASME Grade P92/T92 steels
  16. Applied
  17. Assessment of creep rupture life of weldments of martensitic steels
  18. Computational analysis of the precipitation kinetics in a complex tool steel
  19. Predicted precipitate back-stress and creep rupture strength of the advanced 9–12% Cr steel COST E2
  20. Compositional characterisation and thermodynamic modelling of nitride precipitates in a 12% Cr steel
  21. The L2 norm of the deviation between the measured and computed transient displacement field in a test weld
  22. Toward reliable calculations of heat and plastic flow during friction stir welding of Ti-6Al-4V alloy
  23. Notifications
  24. DGM News
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