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On the Development of Dual Graphite Iron as a Functionally Graded Material

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Abstract

Graphite morphology plays significant roles in mechanical properties in graphitic cast irons. Typically, cast irons are made with uniform graphite morphology and distribution across the microstructure of castings. This research explored the possibility of using the difference in graphite morphology over the volume of castings to create a Functionally Grade Material (FGM). The FGM will enable future applications that require the tailor-made microstructure. The hybridization method used in this research was the sulfurization of liquid iron using the sulfur-bearing cores. The result was the Dual Graphite Iron (DGI) that comprised with the lamellar and spheroidal graphite (LG and SG). It was found that the thickness of LG layer increased with increasing sulfur levels in cores. The maximum thickness of the LG layer of 2.2 mm was observed at 6.6 wt%S. The LG/SG interfaces were quite smooth (e.g., controllable) up to 8.8 wt%S where the scattering of the LG microstructure appeared. It was concluded that sulfurization of liquid iron was viable method for producing DGI.

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References

  1. S. Boonmee, D. Stefanescu, Effect of casting skin on fatigue properties of CG iron. Inter Metalcast 7, 15–26 (2013). https://doi.org/10.1007/BF03355550

    Article  CAS  Google Scholar 

  2. C. Labrecque, M. Gagné, P. Cabanne et al., Comparative study of fatigue endurance limit for 4 and 6 mm thin wall ductile iron castings. Inter Metalcast 2, 7–17 (2008). https://doi.org/10.1007/BF03355424

    Article  CAS  Google Scholar 

  3. S. Boonmee, B. Gyesi, D.M. Stefanescu, Casting skin of compacted graphite iron part I: evaluation and mechanism for formation. AFS Trans. 118, 205–216 (2010)

    CAS  Google Scholar 

  4. S. Boonmee, D.M. Stefanescu, Casting skin management in compacted graphite iron part II: effect of mold coating and section thickness. AFS Trans. 118, 217–226 (2010)

    CAS  Google Scholar 

  5. N. Ivan, M. Chisamera, I. Riposan, Mold coatings to reduce graphite degeneration in the surface layer of ductile iron castings. Inter Metalcast 6, 61–70 (2012). https://doi.org/10.1007/BF03355539

    Article  Google Scholar 

  6. D. Dhaneswara, B. Suharno, R.D.S. Ariobimo et al., Effect of coating layer of sand casting mold in thin-walled ductile iron casting: reducing the skin effect formation. Inter Metalcast 12, 362–369 (2018). https://doi.org/10.1007/s40962-017-0173-4

    Article  CAS  Google Scholar 

  7. S.N.A.B. Safri, M.T.H. Sultan, M. Jawaid, Damage analysis of glass fiber reinforced composites, composites science and engineering (Woodhead Publishing, Sawston, 2019), pp.133–147

    Google Scholar 

  8. R.M. Mahamood, E.T. Akinlabi, Types of functionally graded materials and their areas of application, in Functionally Graded Materials. (Springer, Cham, 2017), pp.9–21

    Chapter  Google Scholar 

  9. V. Kapsali, Biomimetics for designers: applying nature's processes and materials in the real world, Thames & Hudson, Ltd. (2021)

  10. A.D. Pradeep, T. Rameshkumar, Review on centrifugal casting of functionally graded materials. Mater. Today Proc. 45, 729–734 (2021)

    Article  CAS  Google Scholar 

  11. K. Rane, M. Beining, S. Behera et al., Sand casting of surface alloyed butterfly valve with improved hardness and corrosion resistance by incorporating metal powders in-mold coatings. Inter Metalcast 16, 359–369 (2022). https://doi.org/10.1007/s40962-021-00609-4

    Article  Google Scholar 

  12. M.K. El Fawkhry, T. Mattar, Influence of diffusion and wetting on the sic reinforcement of the cast surface of low alloy steel. Inter Metalcast 12, 139–147 (2018). https://doi.org/10.1007/s40962-017-0151-x

    Article  Google Scholar 

  13. T. Wróbel, N. Przyszlak, A. Dulska, Technology of alloy layers on surface of castings. Inter Metalcast 13, 604–610 (2019). https://doi.org/10.1007/s40962-018-00304-x

    Article  CAS  Google Scholar 

  14. A.B. Malizio and R.W. Jennings (1989). U.S. Patent No. 4832084

  15. F. Marti, S.I. Karsay, Localized flake graphite structure as a result of a reaction between molten ductile iron and some components of the mold. AFS Trans. 87, 221–226 (1979)

    Google Scholar 

  16. S. Nasu, S. Fujita, N. Furusato et al., Effect of casting skin condition on fatigue strength of gray cast iron. Inter Metalcast 11, 155–161 (2017). https://doi.org/10.1007/s40962-016-0109-4

    Article  Google Scholar 

  17. S.N. Lekakh, J. Qing, V.L. Richards, Investigation of cast iron processing to produce controlled dual graphite structure in castings. AFS Trans. 120, 297–306 (2012)

    CAS  Google Scholar 

  18. S. Boonmee, N. Mai-Ngam, On the development of the dual graphite iron. Materials Today: Proceedings 5(3), 9264–9271 (2018)

    CAS  Google Scholar 

  19. A. Kutz, P. Martin, A. Bührig-Polaczek, Microstructural adjustment of the degenerated graphite layer in ductile iron for targeted evaluation on the fatigue properties. Inter Metalcast 14, 1183–1194 (2020). https://doi.org/10.1007/s40962-020-00455-w

    Article  CAS  Google Scholar 

  20. N.A. Voronova, Desulfurization of hot metal by magnesium, iron and steel society (1983)

Download references

Acknowledgement

This work was supported by (i) Suranaree University of Technology (SUT), (ii) Thailand Science Research and Innovation (TSRI), and (iii) National Science, Research and Innovation Fund (NSRF).

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  1. Suranaree University of Technology, Nakhon Ratchasima, Thailand

    S. Boonmee & S. Rassamipat

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  1. S. Boonmee
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  2. S. Rassamipat
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Correspondence to S. Boonmee.

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Boonmee, S., Rassamipat, S. On the Development of Dual Graphite Iron as a Functionally Graded Material. Inter Metalcast 18, 480–493 (2024). https://doi.org/10.1007/s40962-023-01023-8

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