关键词：钢铁；氧化亚铁；等温转变
摘 要：The isothermal transformation of wustite (FeO) in the range of 650～350℃ was studied using Gleeble 3500 thermal simulated test machine,electron back-scatter diffraction (EBSD) and scanning electron microscopy (SEM).A wustite layer was initially formed by oxidizing low carbon micro-alloyed steel in air at 880℃ for 20 seconds.The layer was then isothermally annealed at 650-350℃ in argon for up to 10000 seconds.The transformation of FeO was comprised by a proeutectoid reaction and a eutectoid reaction.