【摘要】 研究了3%取向硅钢经过固体渗硅+扩散退火后组织、物相、成分的变化情况以及其对磁性能的影响。结果表明:在950℃下渗硅6min可以在取向硅钢上制备出组织良好的化合物层,表面物相为Fe₃Si和FeSi;经1 050℃退火1h后,得到组织性能良好的退火样品,当退火时间为2h,得到硅的质量分数接近6.5%（6.43%）的均匀化样品,表面物相变为单一的α-Fe相;经过渗硅+退火后,样品的高频铁损显著降低（50%～86%）,其中退火1h样品铁损降低率更高。经渗硅+退火后,磁感应强度降低。更多还原

【Abstract】 The changes of microstructure,phase and composition of 3% grain oriented silicon steel after solid powder siliconizing and diffusion annealing as well as their effects on magnetic properties were studied.The results showed that well-structured compound layer could be prepared on grain oriented silicon steel by infiltrating silicon at 950℃ for 6 minutes,and the surface phases were Fe₃Si and FeSi.After diffusion annealing at 1 050℃ for 1 hour,annealed samples with good organization properties were obtained.When the annealing time was 2 hours,a homogenized sample with the mass fraction of silicon close to 6.5%（6.43%）was obtained,and the surface phase was the singleα-Fe phase.After solid powder siliconizing and diffusion annealing,the medium and high frequency iron loss of the sample was significantly reduced by 50%～86%,and the iron loss reduction rate of the sample annealed for 1 hour was higher.After solid powder siliconizing and diffusion annealing,the magnetic induction intensity decreased slightly.更多还原