摘要
采用定向凝固方法制备了Fe 6 5%Si实验合金板 ,并进行了金相观察、X射线衍射分析、EBSD分析和磁性测定。结果表明 ,合金板由沿定向凝固方向〈1 0 0〉生长的粗大柱状晶所组成 ,柱状晶的平均截面直径约为 3mm。柱状晶之间绝大部分为大角晶界 ,其余为少量小角晶界和重位点阵晶界。合金板具有强的立方织构并显示出优良的软磁性能 ,其矫顽力只有3 45A/m ,小于其他方法制备的Fe 6 5%Si合金。
Test plate of Fe 6 5%Si alloy is prepared by directional solidification,which is studied by optical microscope observation,X ray diffraction analysis,EBSD investigation and magnetic determination.The results indicate that the test plate consists of large dendrites with an average sectional diameter of 3mm,which grow along the diection of the directional solidification,<100>.Most of the boundaries between these dendrites are large angle grain boundaries,others are small quantities of low angle and CSL grain boundaries.It is also found that the test plate processes strong cubic texture and exhibits soft magnetic properties with a coercive force of 3.45A/m,which is lower than those of the Fe 6.5%Si alloys prepared by other method.
出处
《宝钢技术》
CAS
2001年第2期24-27,共4页
Baosteel Technology
