Comparison between magnetic force microscopy and electron back-scatter diffraction for ferrite quantification in type 321 stainless steel

Research output: Contribution to journalArticle (Academic Journal)peer-review

7 Citations (Scopus)

Abstract

Several analytical techniques that are currently available can be used to determine the spatial distribution and amount of austenite, ferrite and precipitate phases in steels. The application of magnetic force microscopy, in particular, to study the local microstructure of stainless steels is beneficial due to the selectivity of this technique for detection of ferromagnetic phases. In the comparison of Magnetic Force Microscopy and Electron Back-Scatter Diffraction for the morphological mapping and quantification of ferrite, the degree of sub-surface measurement has been found to be critical. Through the use of surface shielding, it has been possible to show that Magnetic Force Microscopy has a measurement depth of 105–140 nm. A comparison of the two techniques together with the depth of measurement capabilities are discussed.
Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalUltramicroscopy
Volume148
Issue number0
Early online date23 Aug 2014
DOIs
Publication statusPublished - Jan 2015

Keywords

  • Ferrite
  • Austenite
  • Electron backscatter diffraction
  • Magnetic force microscopy
  • Type 321 stainless steel

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