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Microstructural Comparison of Spray-Formed and Conventionally Cast 2.5C–19Cr High-Chromium White Iron

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Abstract

A billet of hypoeutectic high-chromium white iron (2.5% C, 19% Cr) was spray formed using gas-to-metal ratios of ~0.9, ~1.0, and ~1.1. The as-sprayed material was close to full density and contained fine (Fe,Cr)7C3 carbides (27–30 vol%) uniformly distributed in a matrix consisting of pearlite and ferrite. Length of the carbides rarely exceeded 30 μm. This was in stark contrast to a conventionally cast starting material, which contained coarse (Fe,Cr)7C3 carbides (~22 vol%) non-uniformly distributed in a matrix consisting of austenite and martensite. Length of the carbides in the cast material occasionally exceeded 100 μm. Varying gas-to-metal ratio between 0.9 and 1.1 did not result in any significant changes in carbide morphology, although slightly coarser carbide morphology was produced with the gas-to-metal ratio of 0.9. Regardless of the gas-to-metal ratio, the finest carbide morphology was found in the surface region of the spray-formed billet.

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References

  1. C.P. Tabrett, I.R. Sare, M.R. Ghomashchi, Microstructure-property relationships in high chromium white iron alloys. Int. Mater. Rev. 41(2), 59–82 (1996)

    Article  Google Scholar 

  2. J.R. Davis, ASM Specialty Handbook: Cast Irons (ASM International, OH, 1996)

    Google Scholar 

  3. A.R.E. Singer, Principles of spray rolling of metals. Met. Mater. 4(6), 246–250 (1970)

    Google Scholar 

  4. A.R.E. Singer, Aluminum and aluminum alloy strip produced by spray deposition and rolling. J. Inst. Met. 100, 185–190 (1972)

    Google Scholar 

  5. J. Lavernia, Y. Wu, Spray Atomization and Deposition (Wiley, New York, 1996)

    Google Scholar 

  6. D.N. Hanlon, W.M. Rainforth, C.M. Sellars, The rolling/sliding wear response of conventionally processed and spray formed high chromium content cast iron at ambient and elevated temperature. Wear 225, 587–599 (1999)

    Article  Google Scholar 

  7. D.N. Hanlon, W.M. Rainforth, C.M. Sellars, The effect of spray forming on the microstructure and properties of a high chromium white cast iron. J. Mater. Sci. 34(10), 2291–2301 (1999)

    Article  Google Scholar 

  8. M.L. Ted Guo, C.H. Chiang, C.Y. Tsao, Microstructure and wear behavior of spray-formed and conventionally cast rolls of 18Cr–2.5 Mo–Fe alloy. Mater. Sci. Eng. A 326(1), 1–10 (2002)

    Article  Google Scholar 

  9. T.T. Matsuo, C.S. Kiminami, W.J. Botta Fo, C. Bolfarini, Sliding wear of spray-formed high-chromium white cast iron alloys. Wear 259(1), 445–452 (2005)

    Article  Google Scholar 

  10. A.H. Kasama, A.J. Mourisco, C.S. Kiminami, W.J. Botta, C. Bolfarini, Microstructure and wear resistance of spray formed high chromium white cast iron. Mater. Sci. Eng. A 375, 589–594 (2004)

    Article  Google Scholar 

  11. J. Lotta, S.P. Hannula, Microstructure and wear resistance of spray formed and conventionally cast high-chromium white iron. Materialwiss. werkst. 45(8), 727–735 (2014)

    Article  Google Scholar 

  12. A. Schulz, V. Uhlenwinkel, C. Bertrand, R. Kohlmann, A. Kulmburg, A. Oldewurtel, R. Schneider, D. Vial, Spray forming of high-alloyed tool steels to billets of medium size dimensions. in Proceedings of 6th International Tooling Conference, Karlstad, Sweden, September 2002, pp. 931–942

  13. Ö.N. Doğan, J.A. Hawk, G. Laird II, Solidification structure and abrasion resistance of high chromium white irons. Metall. Mater. Trans. A 28(6), 1315–1328 (1997)

    Article  Google Scholar 

  14. P. Dupin, J.M. Schissler, Influence of addition of Silicon, Molybdenum, Vanadium, and Tungsten upon the structural evolution of the As-cast state of a high-chromium cast iron (20% Cr, 2.6% C). Trans. AFS 92, 355–360 (1984)

    Google Scholar 

  15. C. Cui, U. Fritsching, A. Schulz, R. Tinscher, K. Bauckhage, P. Mayr, Spray forming of homogeneous 100Cr6 bearing steel billets. J. Mater. Process. Technol. 168(3), 496–504 (2005)

    Article  Google Scholar 

Download references

Acknowledgments

This work was supported by the Graduate School for Advanced Materials and Processes of the Academy of Finland.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, School of Chemical Technology, Aalto University, P.O. Box 16200, FI-00076, Aalto, Finland

    Juho Lotta & Simo-Pekka Hannula

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  1. Juho Lotta
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  2. Simo-Pekka Hannula
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Correspondence to Juho Lotta.

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Lotta, J., Hannula, SP. Microstructural Comparison of Spray-Formed and Conventionally Cast 2.5C–19Cr High-Chromium White Iron. Metallogr. Microstruct. Anal. 4, 261–272 (2015). https://doi.org/10.1007/s13632-015-0209-1

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  • DOI: https://doi.org/10.1007/s13632-015-0209-1

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