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Metallurgical and Materials Transactions A

, Volume 47, Issue 2, pp 842–851 | Cite as

Solidification Sequence of Spray-Formed Steels

  • Guilherme ZeponEmail author
  • Nils Ellendt
  • Volker Uhlenwinkel
  • Claudemiro Bolfarini
Article

Abstract

Solidification in spray-forming is still an open discussion in the atomization and deposition area. This paper proposes a solidification model based on the equilibrium solidification path of alloys. The main assumptions of the model are that the deposition zone temperature must be above the alloy’s solidus temperature and that the equilibrium liquid fraction at this temperature is reached, which involves partial remelting and/or redissolution of completely solidified droplets. When the deposition zone is cooled, solidification of the remaining liquid takes place under near equilibrium conditions. Scanning electron microscopy (SEM) and optical microscopy (OM) were used to analyze the microstructures of two different spray-formed steel grades: (1) boron modified supermartensitic stainless steel (SMSS) and (2) D2 tool steel. The microstructures were analyzed to determine the sequence of phase formation during solidification. In both cases, the solidification model proposed was validated.

Keywords

Deposition Zone Eutectic Constituent Supermartensitic Stainless Steel Droplet Region Equilibrium Solidification Path 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgment

The authors would like to thank the Brazilian institution FAPESP for its financial support.

References

  1. 1.
    M. M. Pariona, C. Bolfarini, R. J. Dos Santos, and C. S. Kiminami, J. Mater. Process. Technol. 102, 221–29 (2000).CrossRefGoogle Scholar
  2. 2.
    P. S. Grant, Prog. Mater. Sci. 39, 497–545 (1995).CrossRefGoogle Scholar
  3. 3.
    A. Schulz, V. Uhlenwinkel, C. Escher, R. Kohlmann, A. Kulmburg, M. C. Montero, R. Rabitsch, W. Schützenhöfer, D. Stocchi, and D. Viale, Mater. Sci. Eng. A 477, 69–79 (2008).CrossRefGoogle Scholar
  4. 4.
    C. Cui, A. Schulz, and V. Uhlenwinkel, Materwiss. Werksttech. 45, 652–65 (2014).CrossRefGoogle Scholar
  5. 5.
    J. Mi and P. S. Grant, Acta Mater. 56, 1588–96 (2008).CrossRefGoogle Scholar
  6. 6.
    J. Mi and P. S. Grant, Acta Mater. 56, 1597–1608 (2008).CrossRefGoogle Scholar
  7. 7.
    C. Meyer, N. Ellendt, L. Mädler, H. R. Müller, F. Reimer, and V. Uhlenwinkel, Materwiss. Werksttech., 2014, pp. 642–51.Google Scholar
  8. 8.
    N. Ellendt, V. Uhlenwinkel, and L. Mädler, Materwiss. Werksttech. 45, 699–707 (2014).CrossRefGoogle Scholar
  9. 9.
    L. A. Bereta, C. F. Ferrarini, C. S. Kiminami, W. J. F. Botta, and C. Bolfarini, Mater. Sci. Eng. A 448–451, 850–53 (2007).CrossRefGoogle Scholar
  10. 10.
    C. F. Ferrarini, C. Bolfarini, C. S. Kiminami, and W. J. Botta F, Mater. Sci. Eng. A 375-377, 577–80 (2004).CrossRefGoogle Scholar
  11. 11.
    H. A. Godinho, A. L. R. Beletati, E. J. Giordano, and C. Bolfarini, J. Alloys Compd. 586, S139–42 (2014).CrossRefGoogle Scholar
  12. 12.
    A. P. D. B. Guerra, N. Ellendt, V. Uhlenwinkel, P. S. C. P. da Silva, and C. Bolfarini, Materwiss. Werksttech. 45, 568–73 (2014).CrossRefGoogle Scholar
  13. 13.
    A. H. Kasama, A. J. Mourisco, C. S. Kiminami, W. J. Botta Fo, and C. Bolfarini, Mater. Sci. Eng. A 375-377, 589–94 (2004).CrossRefGoogle Scholar
  14. 14.
    C. Banjongprasert, S. C. Hogg, E. Liotti, C. A. Kirk, S. P. Thompson, J. Mi, and P. S. Grant, Metall. Mater. Trans. A Phys. Metall. Mater. Sci. 41, 3208–15 (2010).Google Scholar
  15. 15.
    E. J. Lavernia and Y. Wu: Spray Atomization and Deposition, 1st ed., John Wiley & Sons, Inc., New York, 1996, pp. 331–42.Google Scholar
  16. 16.
    P. S. Grant, Metall. Mater. Trans. A Phys. Metall. Mater. Sci. 38A, 1520–29 (2007).Google Scholar
  17. 17.
    H. Henein, Materwiss. Werksttech. 41, 555–61 (2010).CrossRefGoogle Scholar
  18. 18.
    N. J. Calos, E. Graham, D. R. Cousens, P. Christodoulou, C. H. L. Kennard, L. K. Bekessy, and S. F. Parker, Mater. Trans. 42, 496–501 (2001).CrossRefGoogle Scholar
  19. 19.
    P. Christodoulou and N. Calos, Mater. Sci. Eng. A 301, 103–17 (2001).CrossRefGoogle Scholar
  20. 20.
    K.. Mingard, P.. Alexander, S.. Langridge, G.. Tomlinson, and B. Cantor, Acta Mater. 46, 3511–21 (1998).CrossRefGoogle Scholar
  21. 21.
    C. Cui, U. Fritsching, A. Schulz, R. Tinscher, K. Bauckhage, and P. Mayr, J. Mater. Process. Technol. 168, 496–504 (2005).CrossRefGoogle Scholar
  22. 22.
    V. Uhlenwinkel and N. Ellendt, Prog. Powder Metall. Pts 534-536, 429–32 (2007).Google Scholar
  23. 23.
    C. Kramer, V. Uhlenwinkel, and K. Bauckhage, Solidif. 1998 401–13 (1998).Google Scholar
  24. 24.
    A. V. Freyberg, M. Buchholz, V. Uhlenwinkel, and H. Henein, Metall. Mater. Trans. B 34, 243–53 (2003).CrossRefGoogle Scholar
  25. 25.
    A. Hyodo, C. Bolfarini, and T. T. Ishikawa, Mater. Res. J. Mater. 15, 739–48 (2012).Google Scholar
  26. 26.
    C. Meyer, N. Ellendt, V. C. Srivastava, and V. Uhlenwinkel, Int. J. Mater. Res. 103, 1090–95 (2012).CrossRefGoogle Scholar
  27. 27.
    C. R.. Afonso, C. Bolfarini, C.. Kiminami, N.. Bassim, M.. Kaufman, M.. Amateau, T.. Eden, and J.. Galbraith, Scr. Mater. 44, 1625–28 (2001).CrossRefGoogle Scholar
  28. 28.
    C. R. M. Afonso, C. Bolfarini, C. S. Kiminami, N. D. Bassim, M. J. Kaufman, M. F. Amateau, T. J. Eden, and J. M. Galbraith, J. Non. Cryst. Solids 284, 134–38 (2001).CrossRefGoogle Scholar
  29. 29.
    C. R. M. Afonso, C. Bolfarini, W. J. B. Filho, and C. S. Kiminami, Mater. Sci. Eng. A 448-451, 884–89 (2007).CrossRefGoogle Scholar
  30. 30.
    L. F. Bonavina, C. Bolfarini, W. J. Botta, E. R. D’Almeida, and C. S. Kiminami, J. Alloys Compd. 495, 417–19 (2010).CrossRefGoogle Scholar
  31. 31.
    C. S. Kiminami, W. J. Botta, and C. Bolfarini, Materwiss. Werksttech. 41, 513–23 (2010).CrossRefGoogle Scholar
  32. 32.
    D. Uhlenhaut, J. Kradolfer, W. Puttgen, J. Loffler, and P. Uggowitzer, Acta Mater. 54, 2727–34 (2006).CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2015

Authors and Affiliations

  • Guilherme Zepon
    • 1
    Email author
  • Nils Ellendt
    • 2
  • Volker Uhlenwinkel
    • 2
  • Claudemiro Bolfarini
    • 3
  1. 1.Post-Graduation Program of Materials Science and Engineering (PPG-CEM)Federal University of São Carlos (UFSCar)São CarlosBrazil
  2. 2.Foundation Institute of Materials Science (IWT)BremenGermany
  3. 3.Materials Engineering DepartmentFederal University of São Carlos (UFSCar)São CarlosBrazil

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