Misorientation between austenite and σ -Phase in duplex stainless steel

Tibor Berecz, Péter J. Szabó

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Duplex steels are very interesting stainless steels. Their name originates from their special austenitic-ferritic structure. This tissue is due to the high alloying and low carbon content. During heat treatment, several phase transformation and precipitation processes take place. Electron back scattering diffraction is a relatively new investigation method, by which the individual grain orientation can be determined in the scanning electron microscope. The greatest advantage of this method is its speed: it is possible to determine a grain orientation even within 0.1 second. Therefore, in a relatively short time a large amount of data can be collected, and can be statistically evaluated. This paper reports a research work, in which S AF-2507 type duplex stainless steel samples were heat-treated isothermally, and the misorientation between the austenite and σ-phase was calculated.

Original languageEnglish
Pages (from-to)123-130
Number of pages8
JournalPeriodica Polytechnica Mechanical Engineering
Volume49
Issue number2
Publication statusPublished - Jan 1 2005

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Keywords

  • Austenite
  • Duplex stainless steel
  • EBSD
  • Misorientation
  • σ-phase

ASJC Scopus subject areas

  • Mechanical Engineering

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