Skip to main content
SpringerLink
Log in

Transformation Kinetics and Ferrite-Pearlite Ratios in a 65-45-12 Ductile Iron

  • Published:
International Journal of Metalcasting Aims and scope Submit manuscript

Abstract

Dilatometry has been extensively used to study the transformation behavior of steels. This paper outlines the use of Gleeble dilatometry to characterize the transformation kinetics and ferrite-pearlite ratios in a 65-45-12 ductile iron. Samples were heated to 900°C (1650°F) and cooled at constant cooling rates ranging from 2 to 2000°C/min (3.6 to 3600°Flmin). The dilatometer results were analyzed and transformation temperatures and the ferrite-pearlite ratio in the final microstructure were determined. The information was also used to estimate the continuous-cooling-transformation (CCT) curve for 65-45-12 ductile iron. The agreement between the ferrite-pearlite ratio predicted from the dilatometry results and metallographic analysis of dilatometry specimens was excellent.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Hughes, T.C.H., “Ductile Iron,” ASM Handbook, Volume 15, Casting, pp. 647–666 (1988)

    Google Scholar 

  2. Rundman, K.B., “Heat Treating of Ductile Irons,” ASM Handbook, Volume 4, Heat Treating, pp. 682–692 (1991).

    Google Scholar 

  3. Gomez, M., Medina, S.F. and Caruana, G., “Modelling of Phase Transformation Kinetics by Correction of Dilatometry Results for a Ferritic Nb-microalloyed Steel’” ISIJ International, Vol. 43, pp. 1228–37 (2003).

    Article  Google Scholar 

  4. Kop, T.A., Sietsma, J. and Zwaag, S.V.D., “Dilatometric Analysis of Phase Transformations in Hypo-eutectoid Steels”, Journal of Materials Science, Vol. 36, pp. 519–26 (2001).

    Article  Google Scholar 

  5. Prior, G.K., “The Role of Dilatometry in the Characterization of Steels”, Materials Forum, Vol. 18, pp. 265–76 (1994).

    Google Scholar 

  6. Terziev, L., Lecomtre-Beckers, J., Bojinov, V., Petrov, R. and Breyer, J. P., “Dilatometric and Calorimetric Study of the Graphitisation of High Chromium Cast Iron,” J. Chim. Phys., vol. 94, pp. 1107–1115 (1997).

    Google Scholar 

  7. Mrvar, P., Trbizan, M. and Jozef Medved., “Dilatation analysis of the eutectoid transformation of the as-cast spheroidal graphite cast iron,” Scandinavian Journal of Metallurgy, vol. 31, pp. 393–400 (2002).

    Article  Google Scholar 

  8. Ahmadabadi, M.N. and Farjami, S., “Transformation Kinetics of Unalloyed and High Mn Austempered Ductile Iron”, Material Science and technology, Vol. 19, pp. 645–9 (2003).

    Article  Google Scholar 

  9. Ivanova, R., Sha, W. and Malinov, S., “Differential Scanning Calorimetry and Microscopy Study of Transformation in Ductile Cast Irons: Part II. Continous Cooling,” ISIJ International, vol. 44, pp. 896–904 (2004).

    Article  Google Scholar 

  10. Zimba, J., Simbi, D. J., Chandra, T. and Navara, E., “A Dilatometry Study of the Austenization and Cooling Behavior of Ductile Iron Meant for the Production of Austempered Ductile Iron (ADI),” Materials and Manufacturing Processes, vol. 19, pp. 907–920 (2004).

    Article  Google Scholar 

  11. Balloy, D. and Tissier, J.-C., “Improvement in the characteristics of nodular graphite cast iron for crankshafts,” Steel Research International, vol. 78, pp. 167–172 (2007).

    Google Scholar 

  12. Buddy Damm, E. and Lasday, S.B., “Metallurgical Physical Simulation System and Examples of Practical Applications,” Industrial Heating, vol. 63, pp. 23–29 (1996).

    Google Scholar 

  13. ASTM A 1033-04, “Standard Practice for Quantitative Measurement and Reporting of Hypoeutectoid Carbon and Low-Alloy Steel Phase Transformation”, ASTM International, pp. 1–14 (2004).

  14. Samuel, C. and Viswanathan, S., “Specimen Configurations for Gleeble Dilatometry”, Poster Presentation, The Minerals, Metals, and Materials Society Annual Meeting. New Orleans, March 10–13, 2008.

  15. Mespoint, C., Zhao, J.Z., Vandeputte, S. and Cooman, B.C.D., “An Improved Method for Determining the Continuous Cooling Transformation Diagram of C-Mn Steels”, Steel Research, Vol. 72, pp. 263–70 (2001).

    Google Scholar 

  16. Venugoplan, D.A., “Kinetic Model of the γ−α + Gr Eutectoid Transformation in Spheroidal Graphite Cast Irons,” Metallurgical Transactions A, vol. 21A, pp. 913–918 (1989).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL, USA

    C. Samuel & S. Viswanathan

Authors
  1. C. Samuel
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. S. Viswanathan
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Samuel, C., Viswanathan, S. Transformation Kinetics and Ferrite-Pearlite Ratios in a 65-45-12 Ductile Iron. Inter Metalcast 2, 55–65 (2008). https://doi.org/10.1007/BF03355436

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03355436

Keywords

Search

Navigation