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Banded structures in dual-phase steels – A novel characterization method

  • Benoit Krebs , Lionel Germain , Mohamed Gouné and Alain Hazotte
Published/Copyright: June 11, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 102 Issue 2

Abstract

A simple to implement and original automated method is presented to quantify the intensity and wavelength of “banded structures”, i. e. microstructures presenting irregular and parallel bands enriched in a given phase. This method is based on the analysis of the covariance function of binary images. It is firstly tested on model representative images. It is compared with a conventional method derived from the ASTM E-1268 standard and appears to present a higher robustness with regard to preparation artifacts. Then, it is applied to real microstructures of dual-phase steels, which show more or less regular martensite-enriched bands in a ferrite matrix. The method is capable of efficiently discriminating dual-phase microstructures resulting from different thermo-mechanical routes.

Keywords: Dual-phase steel; Banded microstructure; Quantitative microscopy
* Correspondence address Pr Alain Hazotte, Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux, (LEM3), Université Paul-Verlaine, Ile du Saulcy 57045 Metz, France, Tel.: +33 3 87315644, Fax: +33 3 87315377, E-mail:

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Received: 2009-11-9
Accepted: 2010-10-29
Published Online: 2013-06-11
Published in Print: 2011-02-01

© 2011, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.110467
Keywords for this article
Dual-phase steel; Banded microstructure; Quantitative microscopy

Articles in the same Issue

  1. Contents
  2. Contents
  3. Feature
  4. Re-evaluation of activities of magnesium and zinc components in the magnesium—zinc binary system from very low to high temperature
  5. Original Contributions
  6. Phase equilibria studies in alumina-containing high zinc fayalite slags with CaO/SiO2 = 0.55 Part 1
  7. Influence of oxygen partial pressure on the growth of Al-doped zinc oxide films by reactive MF magnetron sputtering
  8. Discussion on the computational algorithms of stress inside nano-scale solid material
  9. Phase behavior of Ni- and Co-doped SnO2 via reactive sintering and solution annealing
  10. Microstructural evolution of ferritic steel powder during mechanical alloying with iron oxide
  11. Texture and mechanical properties of strip cast and hot rolled magnesium AZ31
  12. Development of highly cube textured nickel superconductor substrate tapes by Accumulative Roll Bonding (ARB)
  13. Temperature dependence of rapidly thermally annealed Ba0.6Sr0.4TiO3 thin film fabricated on platinized Si substrate
  14. Template-free hydrothermal synthesis of tubular ZnO clusters and rods
  15. Preparation of electrospun titania nanofibers
  16. Banded structures in dual-phase steels – A novel characterization method
  17. Hot rolling of binary Ti–Nb alloys Part II: mechanical properties anisotropy
  18. Microstructual evolution of AZ80 magnesium alloy during multi-directional compression deformation at elevated temperature
  19. DGM News
  20. DGM News
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