摘要
观察了高硅钢温轧板再结晶及低温时效过程中轧向和横向磁性能的差异及变化,通过取向分布函数、光学显微及X射线慢速扫描分析了织构、晶粒尺寸以及有序相的析出对铁损及不同磁场下磁感应强度的影响。结果表明,高硅钢虽然具有低的磁晶各向异性,织构仍是决定磁感值的关键因素,优化织构还可降低铁损。D03有序相的析出可降低饱和磁致伸缩系数,有益于降低低频铁损值,但其作用相比晶粒尺寸较小。退火后慢冷过程中依次发生B2及D03有序化,磁感B50的降低应是慢冷导致B2有序化及其有序度升高所致。等温时效过程以D03有序化为主,由于D03相在B2相中析出,时效过程中磁感没有变化。
The rolling and transverse directions＇ magnetic properties of warm rolled Fe-6.5wt% Si thin sheet in the process of annealing and low temperature aging was observed. Effect of crystallography texture, micro- structure and disorder-order transition on magnetic properties was studied by means of orientation distribution functions, optical microscope and X-ray diffraction. The results show that the value of B50 was determined by crystallography texture which also have an important effect on core loss for high silicon steel. Decrease of core loss with formation of D03 phase which decreases the saturation magnetostriction was minora compared with effect of grain diameter, B2 ordering calculated from X-ray patterns and increase in an order parameter take placed with furnace cooling may result in the decrease of B50.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2013年第17期2537-2540,2545,共5页
Journal of Functional Materials
基金
国家高技术研究发展计划(863计划)资助项目(2012AA03A505)
新金属材料国家重点实验室自主资助项目(2012Z-12)
关键词
高硅钢
织构
有序相
磁性能
high silicon steel
texture
ordered phase
magnetic properties
