Isothermal transformation of wustite for low carbon micro-alloyed steel

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.FeO initially transformed to Fe3O4 by proeutecioid reaction and then the retained FeO transformed to lamellar mixture Fe+Fe3O4 by eutectoid reaction.The proeutectoid and eutectoid reactions both followed a C-curve trend and the nose temperatures were 475℃ and 425℃,respectively.An isothermal transformation (IT) diagram was summarized based on our results.

关键词： FeO isothermal transformation nose temperature

作者: Sheng Liu Di Tang Huibin Wu Zhengxu Cai

作者单位: National Engineering Research Center of Advanced Rolling, University of Science and Technology Beijing, Xueyuan Road 30, Beijing, China

会议类型: 国际会议

会议名称: 2nd International Conference on Advanced Materials and Engineering Materials(第二届先进材料与工程材料国际会议)(ICAMEM2012)

会议地点: 北京

会议语种:英文

页码: 457-463

在线出版日期: 2012-12-16（万方平台首次上网日期，不代表论文的发表时间）