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Microstructure evolution in hypereutectoid graphitic steel

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Published/Copyright: May 14, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 102 Issue 10

Abstract

In spite of the excellent machinability and wear resistance of graphitic steels, they exhibit low hardness and mechanical properties due to the presence of a ferritic matrix, soft graphite phase and need for prolonged annealing time. So the matrix evolution of graphitic steel from ferritic to pearlitic, bainitic, martensitic and tempered martensite can overcome to this shortcoming. To achieve this purpose, reaustenitizing graphitic steel has been done at two temperatures (820 °C and 850 °C) and followed by different cooling rates. During this treatment, the ferritic matrix in graphitic steel was replaced by other phases such as pearlitic, bainitic etc. which also contain graphite particles. These transformed microstructures can improve the hardness and mechanical properties of graphitic steel.

Keywords: Graphitic steel; Microstructure; Ferrite; Phase transformation
* Correspondence address Seyyed-Amin Rounaghi, Department of Materials Engineering Faculty of Engineering, Ferdowsi University of Mashhad Mashhad, Iran, Tel.: +98 9155 620 907, Fax: +98 5118 763 305, E-mail:

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Received: 2010-5-27
Accepted: 2011-8-16
Published Online: 2013-05-14
Published in Print: 2011-10-01

© 2011, Carl Hanser Verlag, München

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  2. Contents
  3. Editorial
  4. Laudatio für Frau Prof. Dr.-Ing. Christina Berger
  5. Review
  6. Role of microalloying elements in the microstructure of hot rolled steels
  7. Original Contributions
  8. Experimental study of phase equilibria in the “SnO2” – CaO – SiO2 system in air
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  10. Observation of early melting stages of an Al – Cu alloy in a temperature gradient
  11. Knudsen effusion mass spectrometric studies of the B2 phase in the Al – Co system
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  19. Obtaining high formability of IF-galvanized steel tailor welded blanks by applying optimum CO2 laser welding parameters
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https://doi.org/10.3139/146.110586
Keywords for this article
Graphitic steel; Microstructure; Ferrite; Phase transformation

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Laudatio für Frau Prof. Dr.-Ing. Christina Berger
  5. Review
  6. Role of microalloying elements in the microstructure of hot rolled steels
  7. Original Contributions
  8. Experimental study of phase equilibria in the “SnO2” – CaO – SiO2 system in air
  9. Thermodynamic modeling of the Cr – S system
  10. Observation of early melting stages of an Al – Cu alloy in a temperature gradient
  11. Knudsen effusion mass spectrometric studies of the B2 phase in the Al – Co system
  12. Microstructure evolution in hypereutectoid graphitic steel
  13. The effect of thermal treatment on the structural properties of copper-containing sol-gel silica nanocomposites
  14. Electrospray deposition of thin copper-indium-diselenide films
  15. Morphology, fibrous composition and tensile properties of drag-silk produced by two species of orb spider
  16. Magnetic properties of Co0.5Zn0.5Fe2O4 nanopowders prepared by means of the template-assisted hydrothermal method
  17. Effects of aging and sheet thickness on the room temperature deformation behavior and in-plane anisotropy of cold rolled and solution treated Nimonic C-263 alloy sheet
  18. Thermal expansion/contraction behavior of AA7050 alloy in the as-cast condition relevant to thermomechanical simulation of residual thermal stresses
  19. Obtaining high formability of IF-galvanized steel tailor welded blanks by applying optimum CO2 laser welding parameters
  20. Investigation of the dependence of structural and mechanical properties of cement-bonded bauxite refractories on their process conditions
  21. The effects of curing medium on the flexural strength and water permeability of cementitious composites containing Fe2O3 nanofillers
  22. DGM News
  23. DGM News
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