A method for the determination of ferrite grains with a surface normal close to the (111) orientation in cold rolled steel samples with color etching and optical microscopy

Attila Bonyár, Péter J. Szabó

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cold rolled steel specimens were investigated by color etching. We proved that in this sample ferrite grains with a surface normal close to the (111) orientation are etched with the slowest speed with Beraha-I type color etchant, and that after a sufficient over-etching these specific grains could be distinguished based on this feature. It was demonstrated, that it is possible to stop the color etching in a phase when only grains with (111) orientation show color due to the layer interference, while all the other grains are dull gray due to a thick and transparent layer. This observation was utilized to develop a method to identify and quantify ferrite grains with (111) orientation in cold rolled steel samples with the application of color etching, optical microscopy and digital image post-processing.

Original languageEnglish
Title of host publicationMaterials Science, Testing and Informatics VII
EditorsTibor Berecz, Kornél Májlinger, Imre Norbert Orbulov, Péter János Szabó, Imre Norbert Orbulov
PublisherTrans Tech Publications Ltd
Pages297-302
Number of pages6
ISBN (Electronic)9783038353898
DOIs
Publication statusPublished - Jan 1 2015
Event9th Hungarian Conference on Materials Science, 2013 - Balatonkenese, Hungary
Duration: Oct 13 2013Oct 15 2013

Publication series

NameMaterials Science Forum
Volume812
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other9th Hungarian Conference on Materials Science, 2013
CountryHungary
CityBalatonkenese
Period10/13/1310/15/13

Keywords

  • Color etching
  • Electron back scattering diffraction (EBSD)
  • Optical microscopy
  • Steel

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Bonyár, A., & Szabó, P. J. (2015). A method for the determination of ferrite grains with a surface normal close to the (111) orientation in cold rolled steel samples with color etching and optical microscopy. In T. Berecz, K. Májlinger, I. N. Orbulov, P. J. Szabó, & I. N. Orbulov (Eds.), Materials Science, Testing and Informatics VII (pp. 297-302). (Materials Science Forum; Vol. 812). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/MSF.812.297