Correlative microscopy of a carbide-free bainitic steel

Christina Hofer, Vitaliy Bliznuk, An Verdiere, Roumen Petrov, Florian Winkelhofer, Helmut Clemens, Sophie Primig

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

In this work a carbide-free bainitic steel was examined by a novel correlative microscopy approach using transmission Kikuchi diffraction (TKD) and transmission electron microscopy (TEM). The individual microstructural constituents could be identified by TKD based on their different crystal structure for bainitic ferrite and retained austenite and by image quality for the martensite-austenite (M-A) constituent. Subsequently, the same area was investigated in the TEM and a good match of these two techniques regarding the identification of the area position and crystal orientation could be proven. Additionally, the M-A constituent was examined in the TEM for the first time after preceded unambiguous identification using a correlative microscopy approach. The selected area diffraction pattern showed satellites around the main reflexes which might indicate a structural modulation.

Original languageEnglish
Pages (from-to)1-7
JournalMicron
Volume81
DOIs
Publication statusPublished - 2016

Keywords

  • Carbide-free bainite
  • Martensite-austenite (M-A) constituent
  • Transmission electron microscopy (TEM)
  • Transmission Kikuchi diffraction (TKD)

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