Cayron, Cyril2015-11-102015-11-102015-11-102015https://infoscience.epfl.ch/handle/20.500.14299/1205261511.00591We 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.Martensitesteelnew phaseartifacttwinsComment on 'A new nanoscale metastable iron phase in carbon steels'text::journal::journal article