Effect of Silicon and Microstructure on Spheroidal Graphite Cast Iron Thermal Conductivity at Elevated Temperatures

  • Kalle Jalava
  • Kaisu Soivio
  • Jarkko Laine
  • Juhani Orkas
Article
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Abstract

Spheroidal graphite cast irons are materials that exhibit many possible microstructures and compositions, which in turn create a multitude of possible property combinations. Chemical composition and microstructure are some of the biggest influences on these material properties. This paper concentrates on the effect of silicon alloying in the range of 1–4% and varying ferrite–pearlite microstructures on thermal conductivity of spheroidal graphite cast irons from room temperature up to 400 °C. Results show that increasing silicon alloying levels decreases thermal conductivity, while a decreasing trend is also seen with increasing pearlite fraction, as composition and morphology act as hindrance to thermal conduction. Temperature dependence shows as an initial increase in thermal conductivity and a peak near 200–300 °C for the studied alloys. Based on the results, a model estimating thermal conductivity with silicon alloying, pearlite fraction and temperature is made to aid in the estimation of material properties for design use.

Keywords

cast iron ductile iron spheroidal graphite thermal conductivity elevated temperatures 
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Notes

Acknowledgements

This study was made as part of the DIMECC (Digital, Internet, Materials & Engineering Co-Creation) project ‘Breakthrough steels and applications: Novel Cast Materials.’ Authors would like to thank Aalto University School of Engineering, Department of Mechanical Engineering for the facilities to conduct experiments. Funding was provided by Tekes.

Supplementary material

40962_2017_184_MOESM1_ESM.pdf (347 kb)
Supplementary material 1 (PDF 346 kb)

References

  1. 1.
    J. Olofsson, I.L. Svensson, Mater. Des. 34, 494–500 (2012)CrossRefGoogle Scholar
  2. 2.
    J. Olofsson, I.L. Svensson, Mater. Des. 43, 264–271 (2013)CrossRefGoogle Scholar
  3. 3.
    R. Cenni, M. Cova, G. Bertuzzi, Proc. Inst. Mech. Eng. Part C. 2016 03/29; 2017/01:0954406216640807Google Scholar
  4. 4.
    R.K. Williams, R.S. Graves, F.J. Weaver, D.W. Yarbrough, J. Appl. Phys. 62(7), 2778–2783 (1987)CrossRefGoogle Scholar
  5. 5.
    W.F. Gale, T.C. Totemeier (eds.), Smithells Metals Reference Book, 8th edn. (Elsevier, New York, 2004)Google Scholar
  6. 6.
    R.B. Gundlach, Giesserei-Praxis. 1–2, 1–25 (1985)Google Scholar
  7. 7.
    E. Nechtelberger (ed.), The Properties of Cast Iron up to 500 °C (Verlag Schiele & Schön, Berlin, 1977)Google Scholar
  8. 8.
    M. Sasaki, K. Taniguchi, C. Yoshida, T. Sakamoto, Trs. Jpn. Foundrym. Soc. 4, 37 (1985)Google Scholar
  9. 9.
    T. Okamoto, A. Kagawa, K. Kamei, H. Matsumoto, J. Trans. Jpn. Foundrym. Soc. 4, 32–36 (1985)Google Scholar
  10. 10.
    D. Holmgren, A. Diószegi, I.L. Svensson, Int. J. Cast Met. Res. 20(1), 30–40 (2007)CrossRefGoogle Scholar
  11. 11.
    D.M. Holmgren, A. Diószegi, I.L. Svensson, Int. J. Cast Met. Res. 19(6), 303–313 (2006)CrossRefGoogle Scholar
  12. 12.
    D. Holmgren, R. Källbom, I.L. Svensson, Metall. Mater. Trans. A. 38(2), 268–275 (2007)CrossRefGoogle Scholar
  13. 13.
    D. Holmgren, A. Dioszegi, I.L. Svensson, Tsinghua Sci. Technol. 13(2), 170–176 (2008)CrossRefGoogle Scholar
  14. 14.
    J.K. Chen, S.F. Chen, InTech. (2011)Google Scholar
  15. 15.
    D. Holmgren, I.L. Svensson, Int. J. Cast Met. Res. 18(6), 321–330 (2005)CrossRefGoogle Scholar
  16. 16.
    J. Helsing, G. Grimvall, J. Appl. Phys. 70(3), 1198–1206 (1991)CrossRefGoogle Scholar
  17. 17.
    H. Kempers, Giesserei 53(1), 15–18 (1966)Google Scholar
  18. 18.
    R. Larker, China Foundry. 4(12), 343–351 (2009)Google Scholar
  19. 19.
    H. Löblich, W. Stets, G. Gassner, P. Schumacher, Giesserei. 3, 28–32 (2012)Google Scholar
  20. 20.
    W. Stets, H. Löblich, G. Gassner, P. Schumacher, Int. J. Metalcast. 8(2), 35–40 (2014)CrossRefGoogle Scholar
  21. 21.
    C. Cingi, V. Rauta, E. Suikkanen, J. Orkas, Adv. Mater. Res. 538–541, 2047–2052 (2012)CrossRefGoogle Scholar
  22. 22.
    M. Gustavsson, E. Karawacki, S.E. Gustafsson, Rev. Sci. Instrum. 65(12), 3856–3859 (1994)CrossRefGoogle Scholar
  23. 23.
    Y. He, Thermochim. Acta 436, 122 (2005)CrossRefGoogle Scholar
  24. 24.
    V. Rauta, C. Cingi, J. Orkas, Int. J. Metalcast. 10(2), 157–171 (2016)CrossRefGoogle Scholar
  25. 25.
    D. Holmgren, Int. J. Cast Met. Res. 18(6), 331–345 (2005)CrossRefGoogle Scholar
  26. 26.
    J.W. Donaldson, Foundry Trade J. 63, 141–144 (1940)Google Scholar
  27. 27.
    M.J. Peet, H.S. Hasan, H.K.D.H. Bhadeshia, Int. J. Heat Mass Transf. 54(11–12), 2602–2608 (2011)CrossRefGoogle Scholar

Copyright information

© American Foundry Society 2017

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringAalto UniversityAaltoFinland
  2. 2.Wärtsilä Finland OyVaasaFinland

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