摘要
采用聚焦离子束(FIB)方法制备了合金化热镀锌IF钢横截面TEM试样,研究了镀层中Γ1相显微结构,得到了Γ1相选区电子衍射花样(SADPs)。结果表明:在Γ1相选区电子衍射花样中存在超点阵衍射,说明Γ1相是一种具有2倍周期结构的有序金属间化合物,这种结构不同于Γ1单相试样具有的6倍周期的有序结构。
A series map of selected area electron diffraction patterns（SADPs） of Гl phase in commercial galvannealed IF steel sheets were investigated by transmission electron microscopy（TEM）. The cross-sectional TEM specimen was prepared using focused ion beam （FIB） technique. The results show that there existed superlattice reflections in the SADPs of Г1 phase, indicating that Г1 phase is a kind of ordered intermetallic compound with twice times period. It is different from the 6 times period structure of Г1 single phase specimen.
出处
《机械工程材料》
CAS
CSCD
北大核心
2006年第5期20-22,共3页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(50171040)
关键词
合金化热镀锌板
Г1相
有序结构
galvannealed steel sheet
Г1 phase
order structure
