T700氧化铁皮的结构及成分研究  

Study on Structure and Component of T700 Scale

作　　者：宋卓斐[1] 段宝美 冯运莉[1] 尹绍江[2] 刘长乐[2] 

机构地区：[1]河北联合大学教育部重点实验室,河北唐山063009 [2]唐山钢铁集团有限责任公司,河北唐山063009

出　　处：《热加工工艺》2013年第16期49-51,共3页Hot Working Technology

基　　金：河北省科技厅项目(12212122D);国家自然基金资助项目(51074062)

摘　　要：采用将试样在不同温度下灼烧研究了T700氧化铁皮的结构。结果显示,T700氧化铁皮的成分与结构、温度密切相关,900℃以上氧化铁皮为疏松的FeO和致密的Fe3O4层;随温度的降低,Fe3O4层迅速减少,Fe3O4/FeO的厚度比值迅速减小,且两者的界限也变得模糊;氧化激活能的计算说明,Nb、Ti的存在加速了氧化进程。The scale structure of T700 was studied by firing at different temperatures. The results show that the scale structure ofT700 is closely related with the temperature. The scale consists of loosened FeO and compact Fe304 above 900℃. With decreasing temperature, the number of Fe304 reduces rapidly and the thickness ratio of Fe3OdFeO reduces rapidly. The demarcation line of Fe3OdFeO is not clear. The calculation of oxidation activation energy can prove the accelerated oxidation effect of Nb and Ti.

关 键 词：T700 氧化铁皮 氧化激活能 

分 类 号：TG113.2[金属学及工艺—物理冶金]