Novel -75°C SEM cooling stage: Application for martensitic transformation in steel

Kaneaki Tsuzazki, Motomichi Koyama, Ryosuke Sasaki, Keiichiro Nakafuji, Kazushi Oie, Akinobu Shibata, Takashi Gondo, Hiroya Miyazaki, Hiroshi Akamine, Minoru Nishida

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Microstructural changes during the martensitic transformation from face-centred cubic (FCC) to body-centred cubic (BCC) in an Fe-31Ni alloy were observed by scanning electron microscopy (SEM) with a newly developed Peltier stage available at temperatures to -75°C. Electron channelling contrast imaging (ECCI) was utilized for the in situ observation during cooling. Electron backscatter diffraction analysis at ambient temperature (20°C) after the transformation was performed for the crystallographic characterization. A uniform dislocation slip in the FCC matrix associated with the transformation was detected at -57°C. Gradual growth of a BCC martensite was recognized upon cooling from -57°C to -63°C.

Original languageEnglish
Pages (from-to)250-254
Number of pages5
Issue number2
Publication statusPublished - 2021 Apr 1


  • ECCI
  • SEM
  • cooling stage
  • in situ electron microscopy
  • martensitic transformation
  • steel

ASJC Scopus subject areas

  • Structural Biology
  • Instrumentation
  • Radiology Nuclear Medicine and imaging


Dive into the research topics of 'Novel -75°C SEM cooling stage: Application for martensitic transformation in steel'. Together they form a unique fingerprint.

Cite this