Determination of cleanliness different special steels comparison of different methods

Wolfgang Schützenhöfer, Angelika Tazreiter, Bernhard Plank, Peter Schumacher

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review


One of the key properties of special steels is the cleanliness. The cleanliness is determined by the size, distribution and amount of non metallic inclusions. These inclusions are formed during the steel production process. Non metallic inclusions consist of e.g. oxygen, sulphur and different metals e.g. Al, Si, Mg, Mn, … . The size, the typ, chemical analysis, distribution are quality criteria for the steel and influences for example mechanical properties, corrosion resistance and polishability. State of the art of testing steel cleanliness is using light optical microscopes (LOM) according to international test standards. The aim of this work is the comparison of LOM-results to results derived from more time consuming, if possible 3-dimensional tests like extraction, fatigue tests and X-ray computed tomography (CT).
Original languageEnglish
Title of host publicationProceedings of Conference on Industrial Computed Tomography (iCT2014)
PublisherShaker Verlag
Publication statusPublished - 2014
EventConference on Industrial Computed Tomography 2014 (iCT2014) - Wels, Austria
Duration: 25 Feb 201428 Feb 2014


ConferenceConference on Industrial Computed Tomography 2014 (iCT2014)
Internet address


  • special steels
  • metallurgy
  • cleanliness
  • CT
  • LOM
  • SEM
  • extraction
  • computed tomography


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