image is a derivative work of the following images: File:Diagramma_di_fase_del_ferro_puro.svg licensed with Cc-by-sa-3.0, GFDL 2010-09-11T13:37:42Z Daniele
demir (ε-Fe, hexaferrum). Date 22 June 2023 Source https://commons.wikimedia.org/wiki/File:Diagramma_di_fase_del_ferro_puro.svg Author Daniele Pugliesi