BANDED MICROSTRUCTURE IN FORGED 18CrNiMo7-6 STEEL

Authors

  • Janusz Krawczyk
  • Bogdan Pawłowski
  • Piotr Bała

DOI:

https://doi.org/10.7494/mafe.2009.35.1.45

Keywords:

hot forging, toothed wheels, banded microstructure in ferritic-pearlitic steel, heat treatment

Abstract

18CrNiMo7-6 steel, after hot forging, exhibits a distinct banding of ferritic-pearlitic microstructure, probably related to the segregation of alloying elements during the ingot crystallization. The heat treatment allowing to obtain bainitic microstructure in this steel is described in the paper. The obtained bainitic microstructure exhibits only very small traces of banding.

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References

Dobrzański L.A.: Engineering materials and materials design, Fundamentals of materials science and physical metallurgy. WNT, Warsaw-Gliwice, 2006 (in Polish)

Bastien P.G.: The mechanism of formation of banded structures, Journal of Iron and Steel Institute, 187 (1957) 281-291

Jatczak C.F., Girardi D.J., Rowland E.S.: On banding in steel, Transactions of the ASM. 48 (1956) 279-305

Marcisz J., Garbarz B., Żak A.: Causes of banded microstructure formation in hot rolled ferrite-pearlite steel products, Metallurgy and Metallurgical Engineering News, 74 (2007) 12, 655-663 (in Polish)

Marcisz J., Żak A., Garbarz B.: Methods for improving of homogeneity and plasticity of continuously cast steel semiproducts and products hot rolled or forged with small degree of reduction ratio, Transactions of the Institute for Ferrous Metallurgy, (2007) 1, 51-53 (in Polish)

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How to Cite

Krawczyk, J., Pawłowski, B., & Bała, P. (2013). BANDED MICROSTRUCTURE IN FORGED 18CrNiMo7-6 STEEL. Metallurgy and Foundry Engineering, 35(1), 45. https://doi.org/10.7494/mafe.2009.35.1.45

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