• Corpus ID: 11041200

Comment on 'A new nanoscale metastable iron phase in carbon steels'

@article{Cayron2015CommentO,
  title={Comment on 'A new nanoscale metastable iron phase in carbon steels'},
  author={Cyril Cayron},
  journal={arXiv: Materials Science},
  year={2015}
}
  • C. Cayron
  • Published 2 November 2015
  • Materials Science
  • arXiv: Materials Science
We show that the selected area diffraction patterns presented in a recent paper (T. Liu et al. Sci. Rep. 2015 5, 15331) do not prove the existence of a new hexagonal phase in martensitic steels. They can be actually simulated by twin effects. 
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Angular distortive matrices of phase transitions in the fcc–bcc–hcp system
A new nanoscale metastable iron phase in carbon steels
TLDR
An intensive TEM investigation revealed that extra diffraction spots observed by transmission electron microscopy are in fact attributed to the metastable ω phase in particle-like morphology with an overall size of several or dozens of nanometres.

References

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The morphology and crystallography of lath martensite in alloy steels
Odd electron diffraction patterns in silicon nanowires and silicon thin films explained by microtwins and nanotwins
Anomalous extra spots visible in electron diffraction patterns of silicon nanowires and silicon thin films are explained by the presence of micro- and nanotwins.
Continuous atomic displacements and lattice distortions during martensitic transformations in fcc-bcc-hcp systems
Continuous atomic displacements and lattice distortion during fcc–bcc martensitic transformation
Angular distortive matrices of phase transitions in the fcc–bcc–hcp system
EBSD imaging of orientation relationships and variant groupings in different martensitic alloys and Widmanstätten iron meteorites
GenOVa: a computer program to generate orientational variants
  • C. Cayron
  • Education
    Journal of applied crystallography
  • 2007
This computer program calculates the orientational variants, the operators and the composition table of a groupoid.
A new nanoscale metastable iron phase in carbon steels
TLDR
An intensive TEM investigation revealed that extra diffraction spots observed by transmission electron microscopy are in fact attributed to the metastable ω phase in particle-like morphology with an overall size of several or dozens of nanometres.